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ILLINOIS BIOLOGICAL
MONOGRAPHS
Vol. II April, 1916 No. 4
Editorial Committee
Stephen Alfred For^bes William Trelease
Henry Baldwin Ward
Published under the
Auspices of the Graduate School by
THE University of Illinois
Copyright, 191 5
By the University of Illinois
Distributed June 30, 1916
THE GENUS MELIOLA
IN PORTO RICO
Including Descriptions of Sixty-two New Species
and Varieties and a Synopsis of all
Known Porto Rican Forms.
WITH FIVE PLATES
BY
FRANK LINCOLN STEVENS
Contribution from the
Botanical Laboratories of the University of Illinois
TABLE OF CONTENTS
Introduction Page 7
Key to Sections _ 10
Section A 10
Section B 12
Section C 20
Section D 32
Section E 34
Section F „ 52
Section G 54
Section H 57
Host List 66
Explanation of Plates _ 75
Alphabetical list of Species 85
475] MELIOLA IN PORTO RICO — STEVENS
THE GENUS MELIOLA IN PORTO RICO
The genus Meliola while not the largest or the most important genus
of parasitic fungi in Porto Rico possesses features of special interest.
As at present understood from the monograph of Gaillard, it constitutes
a well defined, clearly marked genus with a fairly large number of species.
In the Sylloge Fungorum of Saccardo 234 species and varieties are
included; 63 additional species have since been described, making 297
species and varieties recognized prior to the present paper. The fungi
are especially beautiful in contour, superficial with small penetrating
haustoria. Usually their effect upon the host is slight though in some
instances well marked pathological effects are discernible. They are
among the most common genera of leaf inhabiting fungi in Porto Rico,
and may be found in all parts of the island in great abundance, usually,
though not always, causing conspicuous black blotches upon one or
both surfaces of the leaf, more rarely upon stems.
The present study is based almost entirely upon collections made
by the writer during the years 1912, 1913, and 1915. Cognizance is ta-
ken also of the collections of Heller reported by Earle. Nearly every
species noted by earlier writers is included in my own collections and is
usually reported upon several hosts and from numerous localities.
A narrative of the two collecting trips which furnished those speci-
mens is given in the Journal of the New York Botanical Garden, June
1916.
A reference to the time involved has been made by Arthur.^
The specimens, types, cotypes, etc. of this collection have been depos-
ited as indicated by Miss E. Young.- Other articles based on these col-
lections have been published by P. Garman,' E. Young,* J. C. Arthur.'
^Mycologia 7:168, 1915, and 8:20, 1916.
2Mycologia 7:143, 1915.
sMycologia 7 -.333, 1915.
■*Mycologia 8:42, 1916.
'Mycologia 7:168, 227, 315, 1915; 8:16, 1916.
8 ILLINOIS BIOLOGICAL MONOGRAPHS [476
The following summary will serve to give a general idea of the scope
of the present report :
Total number of collections of Meliola 729
Number of species of Meliola 95
" varieties of Meliola 6
' ' new species of Meliola 56
" new varieties of Meliola.. _ 6
** species and varieties of Meliola new to Porto Rico 83
" species and varieties of Meliola previously reported
from Porto Rico 20
" hosts 171
" " previously reported _ 25
" " new to Porto Rico for Meliola 146
" host families 53
" " '* previously reported 18
" " " new to Porto Rico for Meliola 35
In grouping the genus into sections and in keying the species I have
in the main followed the plan adopted by Gaillard, laying principal
emphasis upon the setae, perithecial and mycelial, next upon the char-
acter of the setal tips, and basing final specific distinction upon more
minute characters of mycelium, capitate hyphopodia, spore, etc. It is
to be noted that in Porto Rico occur none of the species with clavate,
long, 8-spored asci. All are of the short-ascus form with two to four
spores per ascus. In certain species there is constancy as regards each
character, in other species there is large variation. Young colonies may
be devoid of mycelial setae though they may be abundant in old colonies
(M. earlii). Certain species sometimes though not always present perithe-
cial setae (M. solani). Several species show large variation as to setal
tips, the tips being sometimes simple and acute, sometimes slightly
forked, (M. mangiferae, M. ipamoeae), even much forked, and all aris-
ing from the same mycelium; or the forking may show a great range
in character and complexity (M. furcata). In other species the setal
tips may show great constancy, e.g., M. cucurhitacearum. Taken all in
all the problem of specific limitation is much the same as is met in the
Erysiphaeeae, with very similar characters to use.
The problem of classification is rendered especially difficult by the
fact that the Meliolas are very often overgrown by parasites which con-
fuse the picture and also often prevent the formation of perithecia, and,
I believe, strongly influence the character of the mycelium and hypho-
podia, i.e., the mycelium and hyphopodia are often made more crooked
and more angular, or to appear so, by the parasite that is growing upon
them. I believe also that the character of the mycelium is strongly
477] MELIOLA IN PORTO RICO — STEVENS 9
influenced by the nature of the leaf upon which it grows, that it will
be more nearly straight on a straight-veined, smooth leaf than upon a
crooked-veined, hairy one.
The question of limits of variation in mycelium, hyphopodia and
setae is a difficult one and finally will be solved only by inoculation
experiments and observations upon live material.
I have left out of all consideration the so-called conidial stage, Hel-
minthosporium, Podosporium, etc., because these structures appear use-
less in taxonomy and, moreover, because I am far from convinced that
they really are conidial stages of the Meliolas. The mucronate hyphopodia
are curious structures but they are so variable on the same mycelium
that they possess little value in classification.
The question of biologic specialization has been but little studied
in this genus. My field observation, however, strongly supports the idea
that there is large specialization. For example, Cissus vines heavily
coated with M. merrillii are found with their branches interlacing
with plants susceptible to Meliola but the Cissus Meliola does not invade
the other plants. The Meliolas on Dieffenbachia and Philodendron, mem-
bers of the same family, to the naked eye appear much alike and under
the microscope are kin, yet there is no field evidence that one goes to
the other's host. In some cases forms morphologically indistinguishable
are found upon large numbers of species or genera in the same family
(notably M. hicornis on the Leguminosae), whether these forms are inter-
inoculable or not is not known.
It is possible that were type specimens of all the old species at hand
for comparison some of the new species might be found to agree with
them, but from the descriptions and figures available such does not seem
to be the case. It is more probable that some of the collections which
I have referred to old species, relying upon printed descriptions and
without comparison with types, in reality may be new species. It seems
best for present purposes, however, to avoid undue multiplication of
species and I believe that my error lies more largely in conservatism than
in the creation of new species.
It is extremely difficult to interpret many of the descriptions that
have been written, some are too brief and leave out many essentials,
others describe setae but do not state whether they are perithecial or
mycelial and the supposition is strong that there have been many cases
where the colony character has been taken from a colony parasitized by
some other fungus, e.g., many of the Meliolas described as having a
crustose colony are probably Meliolas parasitized by a Microthyriaceous
fungus.
The final word as to the specific relation cannot be said but with
the large number of collections at my disposal, on many hosts, and the
10 ILLINOIS BIOLOGICAL MONOGRAPHS [478
opportunity thus afforded of making close comparisons between these
forms, I feel that I have at least approximated the truth.
Especially worthy of note is the occurrence in Porto Rico of sev-
eral tropical species on closely related hosts, originally described from
the other side of the world, notably M. merrUUi, on Sicyos from the
Philippines, M. clavnlata on Ipomoea and M. cyperi on Sedges from
Africa.
It should be remembered that Meliola is preeminently a tropical
genus, almost exclusively so, the occurrence therefore of these species
in Porto Rico, Africa and the Philippines with no present tropical land
connection between these countries implies, either that the Meliolas have
in the past been of different climatic range or that they are the residual
flora of previously connected tropical lands.
I wish to acknowledge the very great assistance that I have received
from Doctor N. L. Britton and Mr. Percy Wilson in the determination
of Phanerogamic hosts, from Miss Slosson, the Pteridophytes, and from
Mrs. Agnes Chase the Grasses.
Meliola, Key to Sections
Spores 3-septate, mycelial setae none section A, p. 10
Spores 4-septate
Mycelial setae none
Perithecium with no setae or appendages
Perithecium with setae or with appendages
Mycelial setae present
Perithecium with setae or appendages
Perithecium with no setae or appendages
Mycelial setae simple, straight
Mycelial setae simple, uncinate
Mycelial setae usually simple, some-
times forked
Mycelial setae forked
Section A
Spores 3-septate, mycelial setae none
The members of this section are clearly marked by the 3-septate
spores, a character that seems to be invariable, and the three species
found in Porto Rico are clearly limited as is shown in the following key.
Key to Species of Section A
Perithecium with larvaeform appendages M. puiggarii No. 1
Perithecium with no larvaeform appendages
Perithecial setae absent M. manca No. 2
Perithecial setae present, M. guignardi No. 3
section B,
P-
12
section C,
P-
20
section D,
P-
32
section E,
p.
34
section F,
P-
52
section G,
P-
54
section H,
P-
57
479] MELIOLA IN PORTO RICO — STEVENS 11
There is quite a striking similarity between the hyphopodia upon
the three species with 3-septate spores. They are of the same general
size and contour, large and irregular.
1. M. PuiGGARH Speg.
Fungi Puiggariani. No. 228.
On Rubus sp. Fig. 1.^
El Alto de la Bandera, July 15, '15, 8650, July 14, '15, 8270.
Maricao, July 20, '15, 8892.
No other species has been reported upon the Rosaceae. The form
agrees well with the descriptions and with a type specimen, No. 2722,
received from Dr. Spegazzini, though the perithecial appendages are
nearly twice as long as stated. See also under M. manca.
2. Meliola manca Ell. and Mart.
Amer. Nat. 17 : 1284, 1883, and Jour. Myc. 1 : 148, 1885.
On Myrica cerifera L. Fig. 2.
Manati, Nov. 23, '13, 5289, Nov. 25, '13, 5250. A collection by
Heller near Catano, Jan. 17, '03.
In **Le Genre Meliola", Gaillard unites under M. manca the three
species M. manca, M. sanguinea, and M. puiggarii, giving a new de-
scription for M. manca. This new description mentions larvaeform,
perithecial appendages. The original description of M. manca by Ellis
and Martin mentions no such appendages, but does specifically state
that there are no perithecial appendages. My own material of two
collections is ample. I have studied it carefully, also a specimen of the
Heller collection and a specimen collected by Martin and distributed by
Ellis as N.A.F. No. 1292, all of these upon the same host. These speci-
mens all agree perfectly and agree with the original description. They
do not have larvaeform perithecial appendages and therefore do not
conform with the description as given by Gaillard.
The specimens of Meliola which I have found on Rubus agree well
with the description of M. puiggarii. They have abundant larvaeform
appendages and cannot be placed under M. manca. Moreover, both the
general characters of the mycelium and of the capitate hyphopodia
separate the forms on Rubus from those of Myrcia, the hyphopodia on
Rubus being much larger and more irregular in shape. I am forced
therefore, to regard the description given by Gaillard for M. manca as
^Figures accompanying this article are noted in connection with the host from
which they were made.
12 ILLINOIS BIOLOGICAL MONOGRAPHS [480
erroneous and that of Ellis and Martin as correct and to recognize M.
puiggarii on Rubus, as an entirely different species.
In the head cell of each capitate hyphopodium there is a small, clear
spot, about 3/i in diameter, which appears to be a hole in the lower
side of the hj^phopodium, and if so probably indicates the breaking off
of a haustorium. Similar marks are found upon the capitate hyphopo-
dia in many species but they are not usually so conspicuous as in this
species.
3. M. GUIGNABDI Gaill.
Bull. Soc. Myc. de France 8: 176, 1892.
On Turpinia panniculata Vent. Fig. 3.
Maricao, July 19, '15, 8922, Sept. 20, '13, 3685.
This differs somewhat from the type as described by Gaillard in its
smaller perithecia, about ZOOfi, shorter perithecial setae, about 100-
150/*, and smaller ascospores, 54 x 15fi.
It is of. special interest since it is the only species known which
has a 3-septate spore, without mycelial setae, and with perithecial setae.
The hyphopodia are verj^ characteristic and agree well with the figures
of Gaillard. The type of the species was from Ecuador on host unknown.
SECTION B
Spores 4-septate, no setae or appendages
This section corresponds to the Section I C. a. of Gaillard without
the forms with perithecial appendages. As represented in Porto Rico
it presents many puzzling aspects, occurring on a large number of
hosts of many families and presenting variations which though easy
to recognize are difficult to define with accuracy. The spores in all are
quite uniform and neither in size, shape nor constriction lend themselves
to description. There are no perithecial or mycelial setae. Therefore
the perithecium, the mycelium and hyphopodia must furnish the dis-
tinctions. Moreover, such variations as do occur in the perithecium are
minor and difficult to state definitely. For this reason many students
have referred such forms on numerous hosts to M. glabra. A study of
the Porto Rican material both in the field and under the microscope
convinces me that many of these forms which may agree in spores and
perithecia and which show variation in general habit in mycelium and
hyphopodia are really distinct species. Plants heavily infected with
one of these forms of Meliola may be found growing among plants sus-
ceptible to another form, but which are entirely devoid of Meliola.
In the treatment of the Porto Rican species I have removed from
M. glabra all which it seems very evident are not co-specific with the
481] MELIOLA IN PORTO RICO — STEVENS 13
specimen No. 3849 of Rabenhorst's Fungi Europaei. I have described
some Meliolas as varieties though I am inclined to believe that in several
instances they will eventually prove to be really as distinct specifically
as many other forms that are recognized as species.
Key to Species of Section B
Mycelium very dense, close woven
Spore cells about equal in size
Head cell oval or slightly angular M. glabra No. 4
Head cell angular to lobed M. sepulta No. 5
Spore cells unequal M, irregularis No. 6
Mycelium not close woven
Capitate hyphopodia mostly opposite M. solani No. 7
Capitate hyphopodia not opposite
Mycelium more or less crooked
Mycelium wavy
Capitate hyphopodia oval M. hyptidicola No. 8
Capitate hyphopodia globular
Perithecia very rough M. cyclopoda No. 9
Perithecia not very rough M. aibonitensis No. 10
Mycelium very crooked
Capitate hyphopodia angular M. perseae No. 11
Mycelium usually straight or nearly so
Capitate hyphopodia entire
Oval, small, 17 x Ifi M. lagunculariae No. 12
Elliptical, large, 21 x 10)U M. longipoda No. 13
Pyriform M. melastomacearum No. 14
Capitate hyphopodia entire or lobed M. glabroides No. 15
Capitate hyphopodia lobed M. triloba No. 16
4. Meliola glabra Berk, and Curt.
Cuban Fungi N. 883 (pro parte).
Gaillard, Le Genre Meliola : 59 : 1892. ~
On Hypelate trifoliata Sw.
Mona Island, collected by Britton, Cowles and Hess, Feb. 1914.
Two other specimens were also sent to me by Dr. Britton from the
Bronx Herbarium, one from the Bahamas, No. 8246, one from Cuba,
No. 2171, collected in 1860-1864.
On Drypetes sps.
Rio Tanama, July 6, '15, 7885.
This specimen shows an unusually rough, irregular mycelium and
capitate hyphopodia.
14 ILLINOIS BIOLOGICAL MONOGRAPHS [482
If we accept for M. glabra the description given by Gaillard and
as belonging to it the specimen distributed by Rabenhorst and Winter
as No. 3849, Fungi Europaei (See Fig. 4) on Barbacenia purpurea we
must think of this as a form with a dense, closely matted mycelium with
mycelial threads coursing more or less parallel. This is typically the
condition of the Meliola on Hypelate.
4a. Meliola glabra var. psychotriae var. nov.
There is a remarkable variation here in that many of the colonies
are very small, of rapidly branching, closely matted mycelium, while
others are of looser structure and larger in area.
The small, closely matted colonies approach quite closely to the type
while the loose colonies deviate from it widely.
On Palicourea domingensis (Jacq.) DC.
Florida Adentro, July 1, '15, 7649 (type).
On Psychotria hertiana P.
El Alto de la Bandera, July 15, '15, 8673, 8654, 8278, 8710, 8566,
8646. El Gigante, July 17, '15, 8528.
On Psychotria puhescens Sw.
Arecibo - Lares Road, June 21, '15, 7281. Vega Baja, July 2, '15,
7732, July 2, '15, 7741. Dos Bocas, below Utuado, July 8, '15, 8032.
On Psychotria grandis Sw.
Mayaguez, June 25, '15, 7487.
On Psychotria sp. Quebradillas, Nov. 22, '13, 5032.
Vega Baja, Mch. 1, '13, 516.
On Palicourea 1
Mayaguez, May 1, '13, 1070 b. Jan. 30, '13, 316. Vega Baja, Feb.
20, '13, 468. Dos Bocas, below Utuado, Dec. 30, '13, 6650. El Gigante,
Dec. 15, '13, 5944. Ponce, Nov. 8, '13, 4367. Maricao, July 20, '15,
8875.
On Coccocypselum repens Sw.
Maricao, July 20, '15, 8961.
5. Meliola sepulta Pat. in herb.
On Avicennia nitida Jacq. Fig. 5.
Two specimens were collected by Heller, Nos. 390, Jan. 31, '89,
6416, Jan. 17, 1903 ; both of these in the Bronx Garden bear the above
name, but description has not yet been published. The following de-
scription is made from a fragment of specimen No. 390 which becomes
the type:
Colonies circular, 1-7 mm. in diam., black, dense, mostly hypophyl-
lous, mycelium closely branched, producing a closely woven mat. Capi-
483] MELIOLA IN PORTO RICO — STEVENS IS
tate hyphopodia 24 x 14/*, opposite or alternate, head cell angular or
often distinctly lobed, stalk cell 10/* long. Mycelial and perithecial
setae none. Perithecia abundant in older portions of the colony, ITOju, in
diam., slightly rough. Asci evanescent, short, thick, 2-4 spored. Spores,.
52 X 20/A, strongly constricted, ends obtuse.
6. Meliola irregularis sp. nov.
Colonies amphigenous, irregular, 1-3 mm. in diam., black. My-
celium forming a very close network of threads which branch irregu-
larly, Tfx in diameter. Hyphae often so close as to lie in contact form-
ing a mat.
Capitate hyphopodia alternate or irregular, crowded, head cell pyri-
form, somewhat irregular, 17 x 10/x, the basal cell 3-7/* long, Mucronate-
hyphopodia alternate or opposite, bottle-shaped, narrow, 20/a long. My-
celial setae none. Perithecial setae none.
Perithecia 200/a, rough with conic protuberances about 17/x high..
Asci 2-spored, soon evanescent; ascospores 4-septate, brown, constricted^
obtuse, 41 X 14/A, often irregular in shape, one end pointed, one or more
cells larger than the others, or with septa set obliquely, occasionally with
an aberrant number of septa.
On Hygrophila hrasiliensis, (Spreng.) Lind. Fig. 6.
Rio Piedras, Aug. 11, '15, 9283 (type).
This species in character of perithecium resembles M. glabra but
in spores and mycelium it is quite different.
7. Meliola solani sp. nov.
Colonies amphigenous, irregularly circular, 2-4 mm. in diam. My-
celium black, forming a close network, 7/* in diameter, branches
irregular.
Capitate hypophodia small, mostly opposite, not crowded, 2 per
cell, cells about 17/* long, head cell pyriform or globular, 10 x 8/*,
the basal cell short. Mucronate hyphopodia few, alternate or oppo-
site, bottle-shaped, 14 x 7/*. Mycelial setae none. Perithecial setae few
or wanting, straight or slightly curved, 125 x 7/i, tip obtuse, dark.
Perithecia 150-180/*. Asci soon evanescent; ascospores 4-septate^
brown, very slightly constricted, obtuse, 37 x 14/t.
On Solanum jamaicense Mill. Fig. 7.
Monte de Oro, Dec. 3, 13, 5750 (type).
The chief, distinguishing character is the small, nearly globular
capitate hyphopodia which are usually opposite.
16 ILLINOIS BIOLOGICAL MONOGRAPHS [484
8. IVIeliola HYPTmicoLA sp. nov.
Colonies amphigenous, chiefly h3T)ophyllous, irregular, diffuse.
Hycelium black, forming a loose network, 7/t in diameter, branches
irregular.
Capitate hypophodia small, alternate or irregular, not crowded, 1
per cell, cells about 20/* long, head cell ovoid, 14-17 x 9/x, the basal cell
3-6/1 long. ^lucronate hyphopodia few, bottle-shaped. Perithecial setae
none. Mycelial setae none.
Perithecia lOO-140/i, slightly rough. Asci soon evanescent; asco-
spores 4-septate, brown, very slightly constricted, obtuse, 31-34 x 10-13/*.
On Eyptis lantanifolia Poit.
Las Marias, July 10, '15, 8130 (type).
On Eyptis capitate Jacq. Fig. 8.
El Gigante, July 16, '15, 8526.
On Eyptis pectinata (L.) Poit.
Dos Bocas, below Utuado, July 7, '15, 7981. Maricao, July 19, '15,
S791.
On Eyptis sps.
Monte de Oro, Dec. 13, '13, 5760.
9. Meliola cyclopoda sp. nov.
Colonies epiphyllous, circular, 1-5 mm. in diam. Mycelium black,
forming a loose network, 7/t in diameter, branches mostly opposite.
Capitate hj-phopodia small, alternate, not crowded, 1 per cell, cells
20 to 35/1 long, head cell nearly globular, 14 x 14/i, the basal cell 3-7/4
long. Mucronate hyphopodia opposite, bottle-shaped, 10-18 x 6/i. Peri-
thecial setae none. Mycelial setae none.
Perithecia 135-170/1 in diam., rough with conic protuberances. Asci
soon evanescent; ascospores 4-septate, brown, slightly constricted, ob-
tuse, 38 X 14/1.
On Pseudelephantopus spicatus Juss. Fig. 9.
Vega Baja, July 2, '15, 7733 i long, 10-14/i thick. Tip obtuse.
Perithecia 250)u., slightly rough with rounded protuberances. Asci
78 X 38/i, soon evanescent ; ascospores 4-septate, pale brown, slightly con-
stricted, obtuse, 45-52 x 20-22;i.
On Amyris elemifera L. Fig. 35.
Mona Island, Dec. 20-21, 13, 6158 (type), 6150, 6146. Guayanilla,
July 14, '15, 8547.
The colonies of this species are characteristic and the capitate hy-
phopodia distinctive.
48. Meliola thouiniae Earle
Bull. N. Y. Bot. Gard. 3 : 308, 1905.
On Allophylus crassinervis Rad.
Quebradillas, Aug. 5, 15, 9003.
On Thouinia striata Rad. Fig. 36.
Vega Baja, July 2, 15, 7756. Rio Arecibo, K. 64.7, July 8, 15,
7773.
The type was collected on the same host by Heller near Bayamon,
Jan. 21, 1903, No. 6435.
The cylindrical, capitate hypophodia, so crowded as to touch each
other, give a unique appearance to the colonies on Allophyllus. Study
of the type specimen and my own specimens on Thouinia shows varia-
tion in the crowding of the hyphopodia. In some parts of the colony
they are densely crowded and opposite ; at the edge of the same colony
they may be strictly alternate and sparse.
On Winterana canella L.
Guayanilla, July 14, 15, 8548, July 26, 15, 9075. Mona Island,
Dec. 20, 13, 6154. Ponce, Aug. 7, 15, 9189.
On Krugiodendron ferreum (Vahl) Urb,
Guayanilla, July 14, 15, 8594. Rio Tanama, near Arecibo, July 6,
15, 7895. Quebradillas, Aug. 10, 15, 9247, June 20, 15, 9266. Coamo,
Feb. 6, 13, 814, Apr. 6, 13, 831.
49. Meliola didymopanicis P. Henn.
Hedw. 34: 106, 1895.
On Dendropanax arhoreum (L.) Dec. & PI.
Rio Arecibo, K. 64.7, July 8, 15, 7775, Mayaguez Mesa, June 25,
15, 7440. Florida Adentro, July 1, 15, 7647.
On Dendropanax laurifolium (E, March.) R. C. Schneider.
El Alto de la Bandera, July 14, 15, 8265.
40 ILLINOIS BIOLOGICAL MONOGRAPHS [508
The species was described from Brazilian specimens on Didymopa-
nax sps. My material does not agree exactly with the somewhat meagre
description, but does agree fully with a co-type specimen (Glazion,
Minas Geraes, Brazil 1893) kindly furnished by Dr. H. Sydow. No
perithecial setae are evident, though the mycelial setae are often clus-
tered around the base of the perithecium, which may account for this
character in the description. A striking character in my specimens is
the capitate hyphopodia, which are usually opposite, with a regular, oval
head cell. The chief distinction between -this species and M. araliae
seems to be in the length of the setae. It is possible that M. didymo-
panicis should be reported under that name. M. araliae was collected
in Porto Rico, by Ule, No. 242 in 1884 on "Aralia arborea".
50. Meliola amomicola sp. nov.
Colonies mostly hypophyllous, black, circular to irregular, diffuse,
5-15 mm. in diam. Mycelium rather closely woven, nearly straight,
black to pale straw color, branches mostly opposite, 6/x thick.
Capitate hyphopodia mostly opposite, two per cell, cells about 24/x
long. Head cell cylindrical, straight or crooked, little or no thicker than
the stalk cell, stalk cell 2-4/u, long. Mucronate hyphopodia scattered,
bottle-shaped, 24 x 6/x. Perithecial setae none. Mycelial setae sparse,
scattered, long, 900-1000/u., lOytt thick at base, black throughout, acute.
Perithecia scattered, 180/u, in diam. Spores 15 x 11 fi, strongly con-
stricted, obtuse.
On Amomis caryophyllata (Jacq.) Krug. and Urb. Fig. 37.
Mayaguez Mesa, June 15, '15, 7054 (type). Mayaguez, June 25,
'15, 7483.
51. Meliola myrsinacearum sp. nov.
Colonies amphigenous, more abundant above, irregular, circular,
1-10 mm. in diam., confluent. Mycelium black, forming a close network,
10/x in diam., branches mostly opposite.
Capitate hyphopodia alternate, unilateral or irregular, not crowded,
1 per cell, cells about 34/Lt long, head cell nearly cylindrical or slightly
pyriform, 20 x 14/i,, the basal cell 2-4yx long. Mucronate hyphopodia
few and scattered, alternate or opposite, bottle-shaped, 24 x lO/i. Peri-
thecial setae none. Mycelial setae few or absent in young colonies, abun-
dant in old colonies, straight or slightly curved, 625-}- x lO/i, dark
throughout, tip obtuse.
Perithecia 200ju,, somewhat rough. Asci soon evanescent; ascospores
4-septate, brown, slightly constricted, obtuse, 51 x 17-20/x.
On Ardisia guadalupensis Due.
Mayaguez Mesa, June 29, '15, 7576 (type), 7057.
509] MELIOLA IN PORTO RICO — STEVENS 41
On Myrsinaceae indet,
Maricao, July 19, '15, 8905, Oct. 20, '13, 3681.
This species is closely related to M. amphitricha but distinguished
from it by the shape of the capitate hyphopodia.
52. Meliola pilocarpi sp. nov.
Colonies hypophyllous, irregular, 4-15 mm. in diam., black. My-
celium forming a loose network of threads, branches opposite or alter-
nate, 8/t in diameter.
Capitate hyphopodia alternate, rarely opposite, not crowded, one
per cell, cells, 20-30)u, long, head cell cylindrical or slightly thickened,
20 X lO/Lt, the basal cell short. Mucronate hyphopodia mostly opposite,
bottle-shaped, the neck often curved, 20 x 7/x. Perithecial setae none.
Mycelial setae few, scattered, straight, black, 1100/i, long, 10/* thick at
base, tip acute.
Perithecia 190/a in diam. Asci soon evanescent; ascospores 4-sep-
tate, brown, strongly constricted, obtuse, 51-54 x 17-20/t.
On Pilocarpus racemosus Vahl.
Mayaguez, June 13, '15, 7080 (type).
53. Meliola stenotaphri sp. nov.
Mycelium crooked or in zig-zag bends about equal in number to the
hyphopodia.
Capitate hyphopodia alternate, or for considerable distances uni-
lateral, with distinct stalk of much smaller diameter than the head. Stalk
cell 7fi wide, 5-9/a long; head cell spherical or oval, about 20 x 14/li.
Mucronate hyphopodia scarce, opposite or alternate, ampulliform,
7 X 14yu,. Mycelial setae dark, opaque, about 275/* long, 7/a thick at base,
simple and acute or very rarely bifid. Perithecial setae none.
Perithecia small, about lOO/i, surface rough with rounded protuber-
ances. Spores oblong, 4-septate, obtuse, slightly constricted, 30-44 x
10-14/*.
On Stenotaphrum secundatum (Walt.) Ktze. Fig. 38.
Manati, Nov. 5, '13, 4304 (type). Rio Tanama, near Arecibo, July
7, '15, 7940 July 7, '15, 7852. Dos Bocas, below Utuado, July 8, '15,
8023. Arecibo, K. 64.7, July 8, '15, 7810.
The mycelium is distinctive, rather closely woven and with numer-
ous crooks or zig-zags. The long stalks and rounded heads of the capi-
tate hyphopodia are also sufficient to separate this from other forms.
54. Meliola capsicola sp. nov.
Colonies amphigenous, foliicolous and caulicolous, circular, 1-3 mm.
42 ILLINOIS BIOLOGICAL MONOGRAPHS [510
in diam., black. Mycelium forming a very close network, Ip. in diame-
ter, branches irregular, crooked.
Capitate hyphopodia alternate, not crowded, 1 per cell, cells about
20 to 30/i long, head cell very irregular in shape and size, the basal cell
often long. Mucronate hyphopodia few and scattered, bottle-shaped,
irregular, 20 x 7/i. Perithecial setae none. Mycelial setae abundant,
straight or slightly curved, 265 x 10/*, dark throughout, tip acute.
Perithecia 170/*, slightly rough. Asci soon evanescent; ascospores
4-septate, brown, slightly constricted, obtuse, 41 x 14/i.
On Capsicum baccatum L. Fig. 39.
Manati, July 2, '15, 7698. Dos Bocas, below Utuado, July 8, '15,
8019 (type).
On account of the great variation in the hyphopodia, both in shape
and size, the form is noteworthy.
55. ^Ieliola paucipes sp. nov.
Colonies amphigenous, mainly below, irregular, scattered, diffuse,
5-10 mm. in diam. Mycelium forming a verj' loose network of threads,
branching irregularly, 7/i in diam.
Capitate hyphopodia alternate or irregular, distant, 70-100/* apart,
ovoid or pyriform, often angular, head cell 17 x 14/*, the basal cell about
4/* long. MucroHate hj-phopodia mostly alternate, bottle-shaped. My-
celial setae none. Perithecial setae scattered, very long, 700 x lO/i,
straight, simple, tip obtuse.
Perithecia 160/*, slightly rough, ostiole none. Asci evanescent ; asco-
spores 4-septate, brown, very slightly constricted, obtuse, 37 x 14/*.
On Piper hlaUarum, Spreng. Fig. 40.
Mayaguez Mesa, June 25, '15, 7463 (type).
This species, the only collection upon the host, is distinguished from
others by its very long mycelial setae on a loose mycelium, with distant
hyphopodia.
56. ^Meliola panici Earle
Muhlenbergia 1 : 12, 1901.
On Panicum glutinosum Sw.
Maricao, Nov. 18, '13, 4801, July 19, '15, 8934, July 20, '15, 8957.
Monte de Oro, near Cayey, Dec. 3, '13, 5560, 5744, 5672, 5746. Utuado,
Nov. 8, '13, 4389. El Alto de la Bandera, Nov. 8, '13, 4368, July 16,
'15, 8930, 8680, 8647. Ponce, Nov. 8, '13, 4375. El Gigante, Dec. 15,
'13, 5947. Las Marias, July 10, '15, 8187.
On Paspalum sckreberianum (Fl.) Nash.
Maricao, July 19, '15, 8803.
511] MELIOLA IN PORTO RICO — STEVENS 4S
On Lasiacis compacta (Sw.) Hitch.
Utuado, Nov. 8, '13, 4643, 4663.
On Lasiacis divaricata (L.) Hitch.
Arecibo, Jan. 17, 14, 6810. Manati, Nov. 5, '13, 4298. Vega Alta,
Nov. 5, '13, 4195, 4189. Vega Baja, Nov. 5, '13, 45J7. Nov. 22, Arecibo,
by Mrs. A. Chase.
On Lasiacis swartziana, Hitch.
Aiiasco, Oct. 12, '13, 3561. Las Marias, July 10, '15, 8191.
On Oplismenus setarius (Lam.) Roem. & Schult.
Maricao, July 19, '15, 8776.
On Andropogon leucostachyus H. B. K.
El Alto de la Bandera, July 15, '15, 8671.
On Andropogon bicornis L.
Las Marias, July 10, '15, 8168. Vega Baja, July 2, '15, 7751.
On Olyra latifolia L.
El Miradero, Aug. 4, '15, 9159. Mayaguez Mesa, June 25, '15, 7485^
7486, June 29, '15, 7587, June 24, '15, 7390. Maricao, July 20, '15,
8959. San German, June 27, '15, 7518. Arecibo, Jan. 17, '14, 6805.
On Chloris petraea Sw.
Mayaguez, Aug. 1, '15, 7810.
On Ichnanthus pallens (Sw.) Munro.
Maricao, Apr. 3, '13, 829. Monte de Oro, Dec. 3, '13, 5755. Maya-
guez Mesa, June 25, '15, 7441, 7485.
On Gramineae indet,
Monte de Oro, Dec. 3, '13, 5659. Arecibo, Jan. 17, '14, 6796. Tru-
jillo Alto, Aug. 15, '15, 9441.
The type was collected by Heller near Santurce, Porto Rico.
The form on Panicum glutinosum and Ichnanthus is usually
densely parasitized; the setae do not develop typically, nor are the
capitate hyphopodia as likely to be angular as when on the other hosts
listed.
The mycelium upon Lasiacis swartziana, L. divaricata, Paspalum
schreherianum, Olyra, Oplismenus, the Andropogons and Ichnanthus is
frequently straight for great distances, but this I take to be due to the
surface of the host rather than to a specific difference in the fungus.
57. Meliola rudolphiae sp. nov.
Mycelium strictly epiphyllous in circular spots or diffuse, black.
Mycelial setae abundant, long, 400//., black, tapering, septate, acute, sim-
ple ; mycelium crooked.
Capitate hyphopodia alternate, stalk cell short, 3-6/li, head cell ir-
44 . ILLINOIS BIOLOGICAL MONOGRAPHS [512
regular, usually bent to one side, 10 x lljx. AmpuUiform hyphopodia
alternate, 7 x 21/x.
Perithecia numerous, clustered, black, 150-170/x, slightly flattened,
cup-shaped when dry, rough with low tubercles. Asei 4-spored, 65 x 27/i.
Spores 4-septate, dark brown, ends rounded, constriction moderate,
48-51 X 17-20/*.
On Rudolphia voluhilis Willd. Fig. 41.
Monte Alegrillo, IMaricao, Nov. 14, '13, 4791 (type). Maricao, Nov,
18, '13, 4835. Luquillo Forest, Dec. 2, '13, 5439. El Alto de la Ban-
dera, July 10, '15, 8698. Aibonito, July 16, '15, 8467.
This species resembles M. montagnei, differing from it in color,
spores, thickness, and density of mycelium.
58. Meliola sebjaniae sp. nov.
Colonies hypophyllous, irregular, black, 1-6 mm. in diam. Mycelium
forming a loose network of threads which branch irregularly, 6/i in
diameter.
Capitate hyphopodia small, alternate or irregular, distant, 40-70/x
apart, head cell ovoid or pyriform and much lobed, 17 x 10/x, the basal
cell 3-6/Lt. Mucronate hyphopodia usually more abundant than the capi-
tate hyphopodia, opposite, bottle-shaped to conic, narrow, 24 x 6fi. Peri-
thecial setae non^. Mycelial setae abundant, black throughout, straight
or slightly curved, 280-800 x 10,u. Tip abruptly acute.
Perithecia 150-190/x, smooth. Asci soon evanescent; ascospores 4-
septate, brown, constricted, obtuse, 41 x 17/a.
On Serjania polyphylla (L.) Rad. Fig. 42.
Vega Baja, Feb. 22, '13, 425 (type). Florida Adentro, July 1, '15,
7654. Arecibo-Lares Road, June 21, '15, 7219. Catano, Nov. 6, '13,
4181.
This form is clearly differentiated from M. parenchymate, M. am-
higua, and M. thoniniae previously described on the Sapindaceae, all of
which have simple mj-celial setae. The chief characters are angular,
capitate hyphopodia, long, abruptly pointed setae, and numerous mucro-
nate hyphopodia.
59. IVIeliola dipholidis sp. nov.
Colonies amphigenous, irregular, circular, 2-5 mm. in diam. My-
celium black, forming a loose network, 7(x in diameter, branches mainly
opposite.
Capitate hyphopodia small, alternate or irregular, not crowded, 1
per cell, cells about 21 fx long, head cell obovoid to pyriform or globular,
often angular or bent, 17 x 10/t, the basal cell 5-7/i long. Mucronate
513] MELIOLA IN PORTO RICO — STEVENS 45
hyphopodia alternate or opposite, wedge to bottle-shaped, 18 x Ifi. Peri-
thecial setae none. Mycelial setae few, straight or slightly curved, 400 x
7/A, dark throughout, tip acute.
Perithecia llO-lSO/u,, slightly rough with rounded protuberances.
Asci 2-spored, soon evanescent; ascospores 4-septate, brown, cylindrical,
elliptical, distinctly thicker at the middle than toward the ends, strongly
constricted, obtuse, 41-44 x 18/u,.
On Dipholis salicifolia (L.) A.DC.
Guayanilla, July 14, '15, 8549 (type). Quebradillas, June 20, '15,
7265.
This species differs from M. amphitricha in shape of the capitate
hyphopodia and spores and from M. brasiliensis in character of spores
and setae.
60. Meliola ocoteicola sp. no v.
Colonies amphigenous, irregular, 3-10 mm. in diam., confluent.
Mycelium forming a rather loose network of threads, branches mostly
opposite, IfjL in diameter.
Capitate hyphopodia alternate, not crowded, about 30/x apart, cylin-
drical, head cell scarcely thicker than the stalk, apex obtuse, the basal
cell very short. Mucronate hyphopodia few and scattered, usually oppo-
site, conical to bottle-shaped, 20 x 6/*. Perithecial setae none. Mycelial
setae few, straight or slightly curved, 300-350/i,, dark, tip acute.
Perithecia 150/t, ostiole none. Asci soon evanescent; ascospores 4-
septate, brown, strongly constricted, obtuse, 40 x 17/ix.
On Ocotea leucoxylon (Sw.) Mez. Fig. 43.
Mayaguez, June 29, '15, 7560 (type). Monte Alegrillo, near Mari-
cao, Nov. 14, '13, 4762.
On Chrysophyllum sp.
Monte Alegrillo, Nov. 14, '13, 4731 (type), Nov. 18, '13, 4519.
In characters of the capitate hyphopodia this is similar to M. mag-
noliae but is still clearly distinct from that form.
Nos. 4579 and 4731 on Chrysophyllum present in the hypophyllous
colonies a peculiar variation, in that the mycelium is exceedingly crooked
and irregular. These represent, perhaps, a distinct species, but on ac-
count of the general resemblance of the capitate hyphopodia and the
setae to the other form of Chrysophyllum, they are regarded as co-spe-
cific with it.
61. Meliola paulliniae sp. nov.
Colonies black, setose, circular, epiphyllous, 3-8 mm. in diam. My-
46 ILLINOIS BIOLOGICAL MONOGRAPHS [514
celium forming a loose network of straight, radiating threads, 8/* thick,
branches mostly opposite.
Capitate hyphopodia alternate, often at right angles to mycelium,
not crowded, 1 per cell, cells about 34/i long, head cell ovate, 17 x 14/t,
stalk cell short. Mucronate hyphopodia usually opposite, bottle-shaped,
neck narrow. Perithecial setae none. Mycelial setae abundant, straight,
simple, black throughout, rigid, abruptly acute, 275-500 x 8-9/i.
Perithecia 150-160)u,. Asci evanescent, spores 37-40 x 14-15/t, 4-
septate, constricted, obtuse.
On Paiillinia pinnata L.
Mayaguez, May 3, '13, 1149 (type), Oct. 31, '13, 3956, 3914, 3967&.
Vega Baja, Feb. 22, '13, 376. El Alto de la Bandera, July 16, '15, 8722.
Rio Arecibo, K. 64.7, July 8, '15, 7787. Barros, Jan. 2, '13, 55.
On Casearia ramiflora Vahl.
Martin Pena, Aug. 11, '15, 9306, 9328. Barceloneta, Aug. 10, '15,
9256. Manati, July 2, '15, 7688. Vega Baja, March 1, '13, 512, July 2,
'15, 7745, Nov. 5, '13, 4262, March 2, '13, 510. St. Ana, Dec. 31, '13,
6683. San German, Dec. 12, 13, 5844.
On Casearia sylvestris Sw.
Mayaguez Mesa, June 29, '15, 7566, June 14, '15, 7017, May 1, '13,
1051, May 4, '13, 1200. Miradero, Aug. 4, '15, 9136. Arecibo-Lares
Road, June 21, '15, 7285. San German, Dec. 12, '13, 5837, 5864.
On Casearia arhorea (L. CI. Rich.) Urb.
Monte de Oro, Dec. 13, '13, 5709.
On Casearia aculeata Jacq.
Lajas, June 17, '15, 7151.
On Casearia sp.
Dos Bocas, below Utuado, Dec. '17, '15, 6071. Mayaguez, June 15,
'15, 7074, Oct. 31, '13, 3935. 3920.
The specimens on Casearia differ somew^hat from those on Paul-
linia, especially in the character of the setae.
On Mammea americana L.
Maricao, Sept. 20, '13, 3641. Las Marias, July 10, '15, 8207.
On host unknown, Martin Pena, Aug. 11, '15.
The specimens upon Mammea show distinctly longer and more
slender setae than those on other hosts and are perhaps specifically dis-
tinct.
According to the keys of Gaillard this species would be identified
as M. polytricha, K. and C, therefore, for purposes of comparison, I am
publishing a photograph of the type of M. polytricha, fig. 44.
515] MELIOLA IN PORTO RICO — STEVENS 47
62. Meliola chamaecristae Earle
BuU, N. Y. Bot. Gard. 3 : 304, 1905.
Described "on Chamaecrista glandulosa," collected by Heller, No.
6371.
63. Meliola earlii sp. nov.
Colonies amphigenous, irregular, 1-4 mm. in diam. Mycelium form-
ing a loose network of crooked threads which branch irregularly, often
angling at the hyphopodia, about 6fx in diam.
Capitate hyphopodia small, alternate, not crowded, about 25/t
apart, ovoid or pyriform, sometimes angular or bent, 8 x 10/x, the basal
ceU short. Mucronate hyphoodia few, bottle-shaped. Perithecial setae
none.
Mycelial setae few or numerous, about 160/x, long, straight or slightly
curved, opaque, tip acute.
Perithecia 160/x, rough with rounded protuberances, ostiole none.
Asci soon evanescent ; ascospores 4-septate, brown, somewhat constricted,,
obtuse, 35-40 x lO/u,.
On Pilea sp. Fig. 45.
Florida Adentro, July 1, '15, 7685 (type).
On Pilea parietaria (L.) Bl.
Rio Arecibo K. 64.7, July 8, '15, 7804.
On Pilea nummularifolia (Sw.) Wedd.
Jajome Alto, Dec. 3, '13, 5640.
The species is associated with a Meliola determined by Earle as M.
iriloha on Pilea parietaria. Heller, No. 558. It is differentiated from
M. leptospora by spore characters. This Meliola though associated with
M. triloba is clearly distinct from it in the general habit of the mycelium
and especially in the presence of mycelial setae on M. earlii.
The species is named in honor of F. S. Earle in recognition of his
researches upon Porto Rican fungi.
64. Meliola gesneriae sp. nov.
Colonies hypophyllous, circular, 2-8 mm. in diam. Mycelium black,
forming a close network, 7/t in diameter, branches mostly opposite.
Capitate hyphopodia alternate, not crowded, 1 per cell, cells about
24/x, long, head cell ovate to globular, 10 x 14fi, the basal cell 4-6/i long.
Mucronate hyphopodia alternate or opposite, bottle-shaped. Perithecial
setae none. Mycelial setae straight or slightly curved, 400 x Ifi, dark
throughout, most abundant around the perithecia. Tip acute.
Perithecia 110/x, smooth. Asci soon evanescent ; ascospores 4-septate,
brown, very slightly constricted, 41 x 17/m.
-48 ILLINOIS BIOLOGICAL MONOGRAPHS [516
On Gesneria alhiflora (Dene.) O. Ktz.
Mayaguez Mesa, June 25, '15, 7431 (type), 7465. Dos Bocas, below
Utuado, July 8, 15, 8018, Dee. 30, '13, 6590.
On Cestrum laurifolium I'Her.
Maricao, Apr. 3, '13, 824.
On Cestrum macrophyllum Vent.
El Alto de la Bandera, July 14, '15, 8301.
El Gigante, July 16, '15, 8561.
65. Meliola jatrophae sp. nov.
Colonies epiphyllous, circular to irregular, 1-4 mm. in diam. My-
celium forming a loose network of threads; branches mostly opposite,
7fi in diameter.
Capitate hyphopodia alternate or irregular, forming an acute angle
with the mycelium, not crowded, about 21 fi apart, head cell ovate, 17 x
Ifi, apex obtuse, the basal cell short. Mucronate hyphopodia abundant
and crowded on certain threads, opposite, bottle-shaped. Perithecial setae
none. Mycelial setae few, except around the base of the perithecia
where they are numerous, curved, about 250/x long, dark, tip acute.
Perithecia 130-150/x, slightly rough, with rounded protuberances,
Asci soon evanescent; aseospores cylindrical, 4-septate, brown, slightly
constricted, obtifse, short, thick, 30 x IT/x.
On Jatropha hernandifolia Vent.
Rio Tanama, near Arecibo, July 6, '15, 7873 (type). Dos Bocas,
near Utuado, July 8, '15, 7930.
The most distinctive characters are the short, thick aseospores and
the ovate, capitate hyphopodia, all directed forward at an acute angle.
66. Meliola mayepeae sp. nov.
Colonies amphigenous, more commonly epiphyllous, circular, 1-5
mm. in diam. Mycelium black, forming a rather close network, 7/* in
diameter, branches opposite, mostly at acute angles.
Capitate hyphopodia small, alternate, not crowded, 1 per cell, cells
about 35/x long, head cell obovoid, 10 x 7/x, the basal cell Sfi long. Mu-
cronate hyphopodia not seen. Perithecial setae none. Mycelial setae
few to abundant, most plentiful around the perithecia, slightly curved,
about 250 x 6fx, dark throughout. Tip simple, obtuse.
Perithecia 170/i,, slightly rough. Asci soon evanescent; aseospores
4-septate, brown, very slightly constricted, obtuse, 30-35 x 17/a.
On Mayepea domingensis Krug and Urb. Fig. 46.
Mayaguez Mesa, June 25, '15, 7468 (type). El Alto de la Bandera,
July 16, '15, 8703.
517] MELIOLA IN PORTO RICO — STEVENS 49
This species is distinguished from M. brasiliensis by the shape of the
capitate hyphopodia and the bases of the setae.
67. Meliola gymnanthicola sp. nov.
Colonies epiphyllous, circular, 2-4 mm. in diam. Mycelium form-
ing a close network, 7/u, in diameter, branches mostly opposite and often
at right angles.
Capitate hyphopodia alternate, not crowded, 1 per cell, cells about
20/A long, head cell ovoid to nearly cylindrical, 17 x lO/x, the basal cell
2-Zfi long. Mucronate hyphopodia alternate or opposite, conical to bot-
tle-shaped, irregular, 16-18- x 7fi. Perithecial setae none. Mycelial
setae scattered, slightly crooked, 300 x 7fi. Tip obtuse, dark. Perithecia
190/i, slightly rough. Asci soon evanescent ; ascospores 4-septate, brown,
very slightly constricted, obtuse, 37 x 17 fi.
On Gymnanthes lucida Sw.
Guayanilla, July 14, '15, 8596 (type).
68. Meliola lucumae sp. nov.
Colonies amphigenous, much larger below, irregularly circular,
^-10 mm. in diam., diffuse. Mycelium forming a loose network, 7/a in
diameter, branches mostly opposite.
Capitate hyphopodia alternate, distant, 1 per cell, cells about 35/a
long, head cell cylindrical or tapering slightly at each end, 17 x 7/m,
the basal cell 3/x long. Mucronate hyphopodia few, mostly opposite,
narrow-conic, about 20 x 4/*. Perithecial setae none. Mycelial setae
few slightly curved, 200-800 x 7/*, dark throughout. Tip obtuse.
Perithecia 100-150)ii, slightly rough with rounded projections. Asci
soon evanescent; ascospores 4-septate, pale brown, slightly contricted,
obtuse, 44 x 18)u,.
On Lucuma multiflora A. DC. Fig. 47.
Las Marias, July 10, '15, 8164 (type).
The distinctive character of the species is the sparse, diffuse, my-
celium, with cylindrical, capitate hyphopodia associated with slightly
differentiated mucronate hyphopodia.
Guayanilla, July 14, '15, 8596 (type).
69. Meliola amphitrichia Fr.
Elench. Fung. 2 : 109, 1828.
Eeported by Earle *'on leaves of tree." Heller collection. No. 288
near Caguas, 1899.
70. Meliola byrsonimae sp. nov.
Colonies epiphyllous, circular to irregular, 2-5 mm. in diam. My-
<;elium forming a loose network of threads, IO/a in diam.
so ILLINOIS BIOLOGICAL MONOGRAPHS [518
Capitate hyphopodia alternate, distant, usually about 120/1, apart,
cylindrical, 20 x 17/*, often irregular or curved, the basal cell 3-5/i
long. Mucronate hyphopodia opposite, bottle-shaped, about 24/* long.
Perithecial setae none. Mycelial setae very few, scattered, straight or
slightly curved, lOOO/i, long, dark throughout. Tip obtuse to acute.
Perithecia 150 to 160/x, smooth, subtended when young by an areola
of radiate hyphae. Asci soon evanescent; ascospores 4-septate, brown,
slightly constricted, obtuse, 54 x 18/x.
On Byrsonima lucida (Sw.) L. CI. Eich.
Guayanilla, July 14, '15, 3541 (type).
This is closely related to M. amphitricha, M. amhigua and M. coral-
Una, differing from the last two in spore size ; differing from the first,
in abundance, length and color of setae, and in character of capitate
hyphopodia and mycelium.
71. Meliola tabernaemontanae Speg.
Ann. d. Mus. Nac. de Buenos Aires ; 33 : 42, 1912.
On Rauwolfia nitida Jacq.
Martin Pena, Aug. 11, '15, 9327, 9300.
On Tahernaemontana oppositifolia (Spreng.) Urb.
Maya^ez, June 15, '15, ?]073. Hormigueros, K. 7, June 23,
'15, 7352. Mayaguez Mesa, June 29 ,'15, 7558.
On Plumiera krugii Urb.
Maricao, July, 19, '15, 8818.
These specimens conform perfectly with type material kindly sup-
plied by Dr. Spegazzini.
The most distinctive characters are the regularly shaped, capitate
hyphopodia and the black, truncate setae.
71a. Meliola tabernaemontanae. var. forsteroniae var. nov.
The specimens on Forsteronia agree with the type quite closely,
but present constant differences in the setae and capitate hyphopodia
as follows : The setae are long, about 700/x, and taper to an acute apex.
The capitate hyphopodia are larger and more angular than in the type.
On Forsteronia corymhosa (Jacq.) Mey.
Utuado, 4682 (type).
72. Meliola ambigua Pat. and Gaill.
Bull Soc. Myc. de Fr. 4: 104, 1888.
On Lantana odorata L.
Quebradillas, June 20, '15, 7268, 7267.
519] MELIOLA IN PORTO RICO — STEVENS 51
On Lantana camara L.
Dos Bocas, below Utuado, July 8, '15, 8016, 8025. Eio Arecibo,
K. 64.7, July 8, '15, 7806.
On Lantana sp.
Quebradillas, Nov. 22, '13, 5008. Dos Bocas, below Utuado, Dec.
17, '13, 6052, Dec. 17, '30, '13, 6870.
73. Met .TOLA pstchotriae Earle
Bull. N. Y. Bot. Gard. 3: 308, 1905.
On Erithalis fruticosa L.
Quebradillas, Aug. 10, '15, 9240, 9229. Mona Island, Dec. 20, '13,
6082, 6138, 6254. Guayanilla, July 14, '15, 8599. Also collected by
Heller on this host, Jan. 19, 1900, No. 6430, and on Psychotria sps., near
Ponce, Dec. 9, 1902.
On Gonzalagunia spicata (Lam.) G. Maza.
Sabana Liana, Aug. 13, '15, 9371. Miradero, Aug. 4, '15, 9134.
Mayaguez, June 24, '15, 7388, July, '15, 7910, June 14, '15, 7044, 7046.
Vega Baja, Aug. — , '15, 9271. Eio Arecibo, K. 64.7, July 8, '15, 7793.
Mayaguez Mesa, June 29, '15, 7592.
On Randia aculeata L.
Quebradillas, June 20, '15, 7301, Nov. 22, '13, 4985. Florida Aden-
tro, July 1, '15, 7757. Hormigueros, June 23, '15, 7351. Monacillo,
Aug. 12, '15, 9353.
The specimens on this host show slight differentiation in the hypho-
podia and setae.
On Chdococca alba (L.) Hitch.
Mayaguez Mesa, June 25, '15, 7467. Rio Tanama, July 6, '15, 7859.
Martin Peiia, Aug. 11, '15, 9299. Hormigueros, June 23, '15, 7325.
On Guettarda ovalifolia Urb.
Maricao, Jan. 10, '12, 234.
On Borreria laevis (Lam.) Griseb.
El Alto de la Bandera, July 14, '15, 8593, 8598. Dos Bocas, below
Utuado, July 8, '15, 8090.
On Borreria ocimoides DC.
One specimen with no data.
On Ruhiaceae indet.
Guayanilla, July 14, '15, 8550, 8546.
I find this species also on Exostema caribaceum (Jacq.) R. and Sch.
collected in Santo Domingo by Taylor, No. 483.
74. Meliola matepeicola sp. nov.
Colonies epiphyllous, circular, punctiform, 1-2 mm. in diam. My-
52 ILUNOIS BIOLOGICAL MONOGRAPHS [520
celium black, forming a very close network, 9/i in diameter, branches
mostly opposite.
Capitate hyphopodia large, alternate, close, 1 per ceU, cells about
20/1 long, head cell pyriform, 24 x 17/i, the basal 7/x long. Mucronate
hyphopodia few, alternate or opposite, bottle-shaped, crooked, narrow,
16-18 X 6/1. Perithecial setae none. Mycelial setae few, straight or
slightly curved, 150 x 7/i, dark throughout, tip obtuse.
Perithecia lOO-119/i, slightly rough, with conic projections.
Asci soon evanescent; ascospores 4-septate, brown, very slightly
constricted, obtuse, 34 x 14/i.
On Mayepea domingensis Krug and Urb.
Mayaguez Mesa, June 29, '15, 7556 (type). Maricao, Apr. 3, '13,
822.
The distinctive characters of this species are close, dense, small
colony and thick capitate hjT)hopodia. The setae are sometimes very
scant and may perhaps be entirely wanting. ^Most leaves which bear
this fungus are infested with M. mayepeae also, but the two are readily
separable by the naked eye.
75. I^Ieliola clusiae sp. nov.
Colonies hypophyllous, irregular, diffuse, 3-5 mm. in diam. Mycelium
brown, 8/i thick, nearly straight, branching mostly opposite.
Capitate hyphopodia alternate, 1 per cell, cells about 30/i long.
Head cell ovate to elliptical, more rarely cylinder or irregular, 20 x 14/i,
stalk cell 2-4/t long. Mucronate hyphopodia scattered, 20 x 7/i, bottle-
shaped. Perithecial setae none. Mycelial setae few, 800 x lO/i at base,
tips obtuse, brittle, usually broken, mostly clustered around the peri-
thecia.
Perithecia apparently dimidiate, with an areola of radiating hyphae.
Spore 61 x 20/i, strongly constricted, obtuse, cylindrical.
On Clusia minor L.
El Alto de la Bandera, July 15, 8571, July 15, '15, 8283 (type).
Section F.
Spores 4-septate, no perithecial setae or appendages, mycelial setae
simple, uncinate. There are only two species known in Porto Rico.
Key To Species of Section F.
Capitate hyphopodia crowded M. guareieola No. 76
Capitate hyphopodia not crowded M. tecomae No. 77
521] MELIOLA IN PORTO RICO — STEVENS
53
76. Meuola guareicola sp. nov.
Colonies epiphyllous, circular, punctiform, 1-4 mm. in diam., black.
Mycelium dense, forming a close mat of threads which readily sepa-
rates as a whole from the substratum.
Capitate hyphopodia alternate or irregular, crowded, head cell
globular, ovoid or pyriform, 14 x 10/i, the basal cell 2-3/t long. Mucro-
nate hyphopodia alternate or opposite, bottle-shaped, the neck narrow,
16-18 X 7fi. Perithecial setae none. Mycelial setae numerous, forming-
a dense mat covering the colony to the edge, 200-300/i long, 7/t thick,,
dark, pale at tip, upper part strongly coiled or twisted. Tip acute.
Perithecia small, 100-500;^, distinctly ostiolate. Asci soon evanes-
cent ; ascospores 4-septate, brown, slightly constricted, obtuse, 37 x lO/i.
On Ouarea trichilioides L.
Las Marias, July 10, '15, 8166 (type), July 11, '15, 8245. Maya-
guez Mesa, June 25, '15, 7464. Ad juntas, Nov. 22, '13, 4971. Monte
de Oro, near Cayey, Dec. 3, '13, 5737. Dos Bocas, below Utuado, July 8
'15,8096. ^ ^
This species is usually associated with M. guareae from which it is
readily distinguished by its uncinate hairs.
77. Meliola tecomae sp. nov.
Colonies amphigenous, mainly epiphyllous, circular, 2-5 mm. in
diam. Mycelium black, forming a close network of threads, l/x in diame-
ter, branches mostly opposite.
Capitate hyphopodia alternate, not crowded, 1 per cell, cells> about
35/Li long, head cell ovoid, 17 x 13/t, the basal cell 6-10/u. long. Mucronate
hyphopodia opposite, irregularly conic, 16-18 x 6fi, no well differentiated
neck. Perithecial setae none. Mycelial setae abundant, broadly curved
into a large hook at the end, 170 x lOfx, dark throughout, tip obtuse.
Perithecia 170^, slightly rough with rounded protuberances. Asci
soon evanescent; ascospores 4-septate, brown, very slightly constricted,
obtuse, 44 x 17/t.
On Tecoma pentaphylla (L.) Juss. Fig. 48.
Martin Pena, Aug. 11, '15, 9332 (type), Mayaguez, June 24, '15,
7396, 7078. Las Marias, July 10, '15, 8177. Maricao, July 20, '15, 8960.
On Tecoma sp.
El Miradero, Aug. 4, '15, 9163. Las Marias, March 22, '13, 359S,
Mayaguez, Oct. 31, '13, 3950. Maricao, Nov. 18, '13, 4804. Quebra-
dillas, Nov. 22, '13, 4978, 4981. Vega Baja, Nov. 5, '13, 43108i. Arecibo-
Lares Road, Jan. 21, '14, 6790.
The distinguishing character is the long, broadly curved or hooked^
54 ILLINOIS BIOLOGICAL MONOGRAPHS [522
black, setae. They, in general, resemble those figured by Gaillard for
M. halansae or M. intermedia, but the agreement goes no further. There
is a strong superficial resemblance to M. pazschkeana, but the two are
readily distinguished by their very different mucronate hyphopodia.
A specimen on Tecoma which I have not seen, labelled M. pazsch-
keana, in the Bronx herbarium may possibly belong here.
Section G
Spores 4-septate, no perithecial appendages, mycelial setae both,
simple and forked.
Key to Species of Section G^
Capitate hyphopodia opposite M. ipomoeae No. 78
Capitate hyphopodia not usually opposite
Setae very long, 1000/x M. guareae No. 79
Setae shorter
Capitate hyphopodia very narrow, scarcely
thicker than the stalk cell M. magnoliae No. 80
Capitate hyphopodia thicker
Head cell nearly globular M. bicornis No. 95
Head cell more or less elongated
Capitate .hyphopodia often opposite M. smilacis No. 81
Capitate hyphopodia alternate
Head cell regular M. helleri No. 82
Head cell irregular
Setae sometimes forked M. mangiferae No. 83
Setae merely denticulate M. denticulata No. 84
78. IVIeliola ipomoeae Earle (Not M. ipomoeae Kehm-)
Muhlenbergia 1 : 10, July 1901.
On Ipomoea cathartica Poir.
Las Marias, July 10, '15, 8183. Yega Baja, July 2, '15, 7729.
El Alto de la Bandera, July 16, '15, 8692.
On Ipomoea tUiacea (W.) Choisy.
Anasco, Oct. 12, '13, 3506. Mayaguez, Oct. 31, '13, 3909.
On Ipomoea sps. Fig. 49.
El Miradero, Aug. 4, '15, 9160. Dos Bocas, below Utuado, July 8,
^M. stenotaphri which very rarely has bifid setae is to be found in section R.
^The use of this specific name by Rehm (Ann. Myc. 12: 171, 1914) is clearly
invalidated by the prior use by Earle and M. ipomoeae Rehm becomes M. ipomoeae-
phile Rehm, in lit.
523] MELIOLA IN PORTO RICO — STEVENS IS
'15, 8083. Dee. 30, '13, 6563. Rosario, No. 4810. Marieao, July 19,
'15, 8784, 9001.
The type was collected near Mayaguez by Heller, No. 4358, in 1900.
A specimen from the Bronx Garden, No. 6258, determined by Earle,
shows the capitate hyphopodia to be almost exclusively opposite. Al-
though this character is not mentioned by Earle in his description it
appears to me to be the most distinctive feature of the species. The
perithecia instead of being * ' few, 2-4, ' ' as described, are very numerous,
20+ per colony. The forward angling of the hyphopodia appears to
me to be a variable character.
This fungus frequently grows upon the same leaf with M. clavulata
which it resembles very closely, with the exception of the setal tips
and the arrangement of the capitate hyphopodia.
79. Meliola guareae Speg.
Ann. d. Mus. Nac. de., Buenos Aires, 23 : 42, 1912.
On Guarea trichUioides L.
Las Marias, July 10, '15, 8166 (type). Dos Bocas, below Utuado,
July 8, '15, 8096. Monte de Oro, Dec. 3, '13, 5737. Adjuntas, Nov. 22,
'13, 4971. Jajome Alto, Dec. 3, '13, 5691. Mayaguez Mesa, June 25,
'15, 7464. Usually associated with M. guareicola but on the lower side
of the leaves.
These specimens differ from the type, which was sent to me by
Dr. Spegazzini, in that they have larger hyphopodia, more abundant
setae, and in minor colony characters, especially in density of growth.
The setae with forked tips are rare and the fact that this character was
not mentioned by Spegazzini is not significant.
80. Meliola magnoliae sp. nov.
Colonies hypophyllous, irregular, 3-20 mm. in diam., black. My-
celium forming a very loose network of threads, 7/* in diameter.
Capitate hyphopodia alternate or irregular, distant, about 45/i
apart, head cell cylindrical, very little thicker than the stalk cell,
straight or somewhat curved, obtuse, the basal cell about 7/u. long.
Mucronate hyphopodia opposite or irregular, almost cylindrical to
slightly bottle-shaped, 20/t long. Perithecial setae none. Mycelial setae
few, about 700/* long, straight or slightly curved, opaque. Tip acute,
simple or occasionally forked, with short teeth.
Perithecia 200/i, in diam., slightly rough with rounded protuber-
ances, ostiole none. Asci soon evanescent; ascospores 4-septate, dark
brown, very strongly constricted, obtuse, 51 x 20/t.
56 ILLINOIS BIOLOGICAL MONOGRAPHS [524
On Magnolia porioricensis Bello. Fig. 50.
Monte Alegrillo, near Maricao, Nov. 14, '13, 4738 (type).
This species is remarkable for the slight differentiation of its capi-
tate and mucronate hyphopodia which differ from each other but little
and also verj^ much resembles branches, though of determinate growth.
This is evidently one of the most primitive forms in the genus.
81. Meliola smilacis sp. nov.
Colonies amphigenous but more abundant above, circular, irregular,
2-4 mm. in diam. Mycelium not crooked, of medium density, branches
opposite.
Capitate hyphopodia alternate, opposite or unilateral, head cell
cylindrical to globular, 14 x llfi, stalk cell short, about 4/x. Mucronate
hyphododia rare, conical, neck short and tapering, or ampulliform with
neck longer. Mycelial setae abundant, about 500/t high, tapering, lO/x.
thick at base, apex obtuse, rarely bifid, pale, base opaque.
Perithecial setae or appendages none. Perithecia about 200/i in
diam. Ostiole a mere thinning of the apical region. Asci soon evanes-
cent, short type. Spores 4-septate, but slightly constricted, ends ob-
tuse, 15 X 17/1.
On SmUax coriacea Spreng.
Manati, Nov.. 25, '13, 5261 (type).
On SmUax sp. indet.
Jajome Alto, July 17, '15, 8429.
The two hosts appear to be quite different but it is possible that the
latter specimen is a form of S. coriacea.
This Meliola belongs to the group of M. amphitricha from which
it is distinguished by its ostiole, which is however, very difficult of ob-
servation, by the sometimes forked tips of the mycelial setae and by the
capitate h}T)hopodia.
82. Meliola helleri Earle
Bull. N. Y. Bot. Card. 3 : 307, 1905.
The type is on an "unknown woody plant perhaps belonging to
the Myrtaceae", Heller No. 6251, 3 miles west of Ponce, Dec. 9, 1902.
The setae in the cotype specimen which I examined were more fre-
quently simple than forked as called for in the description.
On Eugenia stahlii (Kiaer.) K. and Urb.
Luquillo Forest, Dec. 4, '13, 5343. El Alto de la Bandera, July 15,
'15, 8665. Jajome Alto, July 17, '15, 8436.
The specimens are much overgrown by parasites. Setae were seen
upon one specimen, but all were simple.
525] MELIOLA IN PORTO RICO — STEVENS 57
On Eugenia monticola (Sw.) P. DC.
Manati, Nov. 5, '13, 4285.
On Myrcia deflexa (Poir) P.
El Alto de la Bandera, July 14, 15, 8268, 8268, 8672.
This collection is heavily overgrown by parasites and the determina-
tion is therefore not fully reliable. The typical setae were not seen but
the character of the mycelium and capitate hyphopodia were those
of M. helleri.
On Myrcia splendens (Sw.) P. DC.
Jajome Alto, Dee. 3, '13, 5646.
83. Meliola mangiperae Earle
Bull. N. Y. Bot. Card. 3: 307, 1905.
On Mangifera indica L.
Mayaguez, Aug. 5, '15, 9478, Jan. 8, '14, 6723, June 16, '15, 7109.
Vega Baja, Feb. 23, '13, 440. Manati, Nov. 5, '13, 4300. Luquillo
Forest, Dec. 2, '13, 5558, 5428. El Gigante, near Adjuntas, Dec. 15, '13,
6016. Collected also by Heller, No. 6393, near Rio Piedras, Jan. 9, 1903.
In many cases the colonies, particularly epiphyllous colonies, lack
the usual velvety appearance, have few setae, a loose mycelium instead
of the dense mycelium, and lack the numerous hairs that characterize the
large black hypophyllous blotches. The forking of the setae seems to be
the exception rather than the rule.
84. Meliola denticulata Wint.
Gaillard, Le Genre Meliola : 98, 1892.
On Boystonea horinquena Cook.
Arecibo-Lares Road, June 21, '15, 7279.
Section H
Spores 4-septate, no perithecial appendages, mycelial setae forked.
Key to Species of Section H
Apical branches strongly divergent, well-developed
Primary branches at nearly right angles
Primary branches long, 15-|-/i
Secondary branches well developed M. cucurbitacearum
No. 85
Secondary branches merely toothed M. furcata No. 86
Primary branches short, 4-10/i. M. hessii No. 87
Primary branches not at right angles
58 ILLINOIS BIOLOGICAL MONOGRAPHS [526
Primary branches short, 18/i M. piperis No. 88
Primary branches longer
Capitate hyphopodia mostly opposite
Secondary and tertiary branches well
developed M. quadrispina No. 89
Tertiary branches often not developed M. philodendri No. 90
Capitate hyphopodia alternate M. merrillii No. 91
Apical branches merely teeth or not strongly
divergent
Apical teeth crowded, forming a crest M. gaillardiana No. 92
Apical teeth not crowded to form a crest
Setae very dark
Setae about 400/i, long, hyphopodia
largely opposite M. dieffenbachiae No. 93
Setae about 300/i, long M. bidentata No. 94
Setae translucent M, bicornis No. 95
85. Meliola cucurbitacearum sp. nov.
Colonies epiphyllous, circular, 1-3 mm. in diam. On leaves and
stems. Mycelium black, forming a rather close network, 7/t in diameter,
branches mostly alternate.
Capitate hyphgpodia alternate, not crowded, 1 per cell, cells about
17 to 24/A long, head cell ovoid, lobed, 17 x 14/x,, the basal cell 7/t long.
Mucronate hyphopodia alternate or opposite, bottle-shaped, 20 x 5/*,
neck narrow and crooked. Perithecial setae none. Mycelial setae abun-
dant in the older parts of the colony, 190 x 9/u,, dark throughout. Tip
once or twice dichotomous, branches standing at nearly right angles to
the main axis, primary branches 15-35/1, secondary about the same,
apices acute. Perithecia 120/x, rough with rounded protuberances. Asci
soon evanescent ; ascospores 4-septate, brown, slightly constricted, obtuse,
41 X 14/Li. On leaves and stems of an unknown Cucurb, probably
Cayaponia.
El Alto de la Bandera, July 16, '15, 8732 (type). Fig. 51.
The species is readily recognized by its characteristic, once or twice
dichotomous setae and its lobed capitate hyphopodia.
86. Meliola furcata Lev.
Ann. Sc. Nat. 266, 1846.
On Coccothrinax alta (Cook) Becc.
Dos Bocas, below Utuado, Dec. 17, '13, 6060.
On Acrista monticola Cook.
El Alto de la Bandera, 8303 a. LuquiUo Forest, Dec. 4, '13, 5400.
527] MELIOLA IN PORTO RICO — STEVENS 59
On Thrinax ponceana Cook.
Guayanilla, July 14, 15, 8590, 8017, July 26, '15, 9074.
On Thrinax praeceps Cook.
Dos Bocas, below Utuado, July 8, 15, 8017.
On Macrodiscus lactiflorus (Vahl.) Bur.^
Coamo, Apr. 6, 13, 850 a.
87. Mfjjola HESsn sp. nov.
Colonies epiphyllous, irregular, orbicular, 2-3 mm. in diam. Cen-
ters denuded when old. Mycelium straight, forming a close network
of threads, branches mostly opposite, 7/x in diameter.
Capitate hyphopodia opposite, crowded, about ll/x apart, head cell
pyriform, 7 x 10/i, the basal cell 3/* long. Mucronate hyphopodia oppo-
site, bottle-shaped. Perithecial setae none. Mycelial setae erect, rigid,
not very numerous, uniformly about 190ju, high, 8/t thick. Tip divided
dichotomously, once, twice or thrice, into short branches which stand
out nearly at right angles to the main stalk. Setal branches about 15/*
long.
Perithecia 150/*, minutely rough. Asci soon evanescent, 4-spored;
ascospores 4-septate, brown, slightly constricted, obtuse, 41 x 14/*.
On Paullinia pinnata L. Fig. 52.
Sabana Liana, Aug. 13, 15, 9367 (type). .Mayaguez, May 4, 13,
1207\i.
Named in honor of Mr. W. E. Hess who collected largely in Porto
Rico.
The species is remarkable for its straight, rigid setae of character-
istic branching. Its characters are so marked that it is separated readily
by the naked eye from the other species on Paullinia.
88. Meliola piperis Earle
Muhlenbergia 1 : July 1901, 12.
On Piper adunctum L.
Dos Bocas, below Utuado, July 7, 15, 7964. Las Marias, July 10,
^The determinations of the Meliolas on Palms were all made by Mr. W. E.
Pickler, who has made a special study of the variability of the setal tips of
M. furcata.
tie ILLINOIS BIOLOGICAL MONOGRAPHS [528
'15, 8603. Maricao, April 3, '13, 758. Monte de Oro, near Cayey, Dec.
3, '13, 5678.
The type was collected by Heller on P. adunctum near Mayaguez,
Jan. 1900, No. 4359 b.
89. Meliola quadrispina Rac.
Parasit. Algen. u. Pilze, Javas, III, 33, 1900.
Meliola quadrifurcata Rehm. Leaflets of Philippine Bot, 6: 2194,
1914.
On Ipomoea cathartica Poir. Fig. 53.
Las Marias, July 10, '15, 8163. •
In general aspect of the colony and in the shape of the hyphopodia
there is a striking similarity among the three species above recorded on
the Convolvulaceae, which may point to a close relationship between
them. This very beautiful species differs from all others that I have
seen in its delicately forked setae, which are indeed the striking charac-
ters of the colony. Both types of hyphopodia are strictly opposite though
this character is not mentioned in the original description.
90. Meliola philodendri sp. nov.
Colonies chiefly epiphyllous, circular, black, 1-5 mm. in diam.,
velvety. Mycelium coarse, 8/x,, straight, branches opposite at uniform
angles, setigerous close to the margin of the colony.
Capitate hyphopodia mostly opposite, about 20-30/a apart, stalk cell
short, Sfi, head cell oval, not angular, 10 x 14)u,. Mucronate hyphopodia
scarce, ampuUiform, alternate or opposite, often crowded, mycelial setae
long, 230-300/i., black, at base about 9/i thick, dichotomous, forking three
or more times, ultimate branches acute, branches about 120ju, long.
Perithecia about 185/a in diam. Spores cylindrical, obtuse, 4-sep-
tate, only slightly constricted, 48-54 x 15-20/x,. Spores sometimes nar-
rower and much constricted, becoming moniliform in appearance.
On Philodendron krehsii Schott. Fig. 54.
Arecibo-Lares Road, June 21, '15, 7225 (type). Jayuya, March 2,
'13, 377, Mch. 1, '13, 437. Ponce, Nov. 8, '13, 4346. Jajome Alto, July
17, '15, 8424. Maricao, July 20, '15, 8994. El Alto de la Bandera,
July 16, '15, 8712.
The long, branching, dichotomous setae, together with the opposite
hyphopodia distinguish this species. The species is a conspicuous one
and is of common occurrence in Porto Rico wherever the host is found.
529] MELIOLA IN PORTO RICO — STEVENS 61
91. MetjoLxN. merrillh Syd.
PhU. Jour. Sc. 8 C 6: 479, 1913.
On Cissus sicyoides L.
San German, Dec. 12, '13, 5846, Nov. 8, 13, 5789, 5788. Lares,
Nov. 22, '13, 4841. Utuado, Nov. 8, '13, 4418, 4398. Villa Alba, Jan.
3, '12, 101. El Gigante, near Adjuntas, Dec. 15, '13, 5819. Dos Bocas,
below Utuado, Dec. 17, '13, 6063, July 8, '15, 8101, July 7, '15, 7968.
Anasco, Oct. 12, '13, 3565. Aguada, Nov. 22, '13, 5102. Yauco, Oct.
3, '13, 3145, 3143. Mayaguez, Oct. 31, '13, 3948, 3910. Rio Tanama,
July 6, '15, 7913. Manati, July 2, '15, 7690.
The type is on Cissus leaves collected in Luzon by Merrill. A co-
type specimen was kindly sent to me by Doctor Merrill, also by Dr.
H. Sydow, and comparison clearly verifies the determination, though
there are certain minor differences. In particular, the mycelium in the
Porto Rican specimens is much more dense and luxuriant.
92. Meliola gaillardiana sp. nov.
Colonies epiphyllous, small, circular, 1-2 mm. in diam., black; my-
celium irregular, crooked, forming a very close, dense network of threads
about 9/i, thick, cells about 14/li long.
Capitate hyphopodia small, alternate or irregular, crowded, about
7-17/Li apart, ovoid, pyriform or curved, 10/x in diam., the basal cell 5-6ju,
long. Mucronate hyphopodia few and scattered, alternate or opposite,
bottle-shaped, the neck narrow. Mycelial setae abundant, straight, rigid,
220/i long, 10/i, thick, opaque; at tip bearing a crest, about 17-34/x, of
short, acute spines ; sometimes forking below this crest. Perithecial setae
none.
Perithecia 170/x in diam., slightly rough with rounded protuber-
ances of small, 6/i,, subprominent cells, ostiole none. Asci soon evanes-
cent; ascospores 4-septate, brown, very slightly constricted, obtuse, ter-
minal cells longer than the others, 3 x 14/t.
On Piper adunctum L. Fig. 55.
Rio Arecibo, July 8, '15, 7794 (type), 7796. Dos Bocas, below
Utuado, July 8, '15, 8044, Dec. 30, '13, 6802. Las Marias, July 11, '15,
8223.
The crests at the apices of the mycelial setae are very distinctive.
They seem to be due to a very close, dichotomous branching. The form
is most nearly related to M. piperis but is separated from that species
by the setal tips and the density of mycelium. It differs much from
M. pululahuensis in its mycelial tips. The difference from M. patouUlardi
is less, still the form appears to be distinct from both.
62 ILLINOIS BIOLOGICAL MONOGRAPHS [530
Named in honor of A. Gaillard in recognition of his extensive studies
of the genus Meliola.
93. Meliola dieffenbachl^ sp. nov.
Colonies amphigenous with a tendency to be more numerous above
but larger below, 1-5 mm. in diam,, black, velvety.
Mycelium branches usually opposite at uniform angles forming a
rather dense mat. Capitate hyphopodia alternate or opposite, oblong,
spherical or curved, basal cell 4/* long, head cell 10-14/Lt. Mucronate
hyphopodia few, alternate or opposite. Mycelial setae rigid, black,
straight, about 400/a long, short branched or merely toothed apex. Teeth
of varying number and size. Perithecial setae or appendages none.
Asei soon evanescent, 2-4-spored. Spores cylindrical, 40 x 14ju,, 4-septate,
ends obtuse, slightly constricted at the septa, end cells rather larger than
the others.
Perithecia grouped in center of colony, numerous, 140-170/t in diam.
On Dieffenhachia sequine (Jacq.) Schott. Fig. 56.
Las Marias, July 10, 15, 8148 (type), 8210. Maricao, Oct. 18, '13,
3889, July 19, '15, 8851. Catano, July 2, '15, 7707. Lajas, June 17,
'15, 7155. Monte de Oro, near Cayey, Dec. 3, '13, 5666, 5731. Dos
Bocas, below Utuado, July 8, '15, 8074, 8077. Mayaguez, June 24, '15,
7420.
This differs strikingly from M. phUodendri in the branching of its
setae. It resembles M. fuscidula but differs from it in the character of
the setae.
94. Meliola bidentata Cke.
Grev. 11 : 37, 1882. .
On Tecoma pentaphylla (L.) Juss.
Guanajibo, June 19, '15, 7202, 9002. Hormigueros, K. 7, June 23,
'15, 7347.
On Tdbebuia haemantha (B.) Gris.
Monte Alegrillo, 4716.
On unknown dicot, St. Ana, July 1, '15, 7621, 7633.
The above named specimens were compared with and agree with a
specimen obtained from the Kew Gardens. (Ravenel Fung. Amer.
Exs. — ^No. 330,) there labeled ''M. furcata, Lev." but also labeled in
Cooke's writing **not furcata Lev. but bidentata Cke. M.C.C."
95. Meliola bicobnis Wint.
Hedw. 26 : 99, 1886.
On Meihomia axillaris (Sw.) 0. Ktz. Fig. 57.
531] MELIOLA IN PORTO RICO — STEVENS 63
Florida Adentro, July 1, '15, 7653. Las Marias, July 10, '15, 8179.
Mayaguez, June 24, 15, 7395. Rio Arecibo, K. 64.7, July 8, '15, 7791.
Rio Tanama, July 6, '15, 7838.
On Meihomia adscendens (Sw.) Kuntz.
El Alto de la Bandera, July 15, '15, 8531, 8648.
On Meibomia supina (Sw.) Britt.
Cataiio, Dec. 3, '13, 4532. Martin Pefia, Aug. 11, '15, 9309. Mari-
cao, July 19, '15, 8793, July 20, '15, 8975. Vega Baja, July 2, '15,
7750. Mayaguez, July 3, '15, 8094. Florida Adentro, July 15, '15,
7666. Rio Tanama, July 6, '15, 7854. Dos Bocas, below Utuado, July
8, '15, 8022. El Gigante, near Adjuntas, Dec. 15, '13, 5820. Indiera
Fria, Oct. 8, '13, 3370.
On Dalhergia monetaria L. fil.
Mayaguez Mesa, June 25, '15, 7476. Arecibo-Lares Road, June 21,
'15, 7243. Maricao, Sept. 20, '13, 3658.
On Dalhergia sps.
Mayaguez Mesa, June 29, '15, 7577. Rosario, Apr. 3, '13, 711, July
4, '15, 9016.
On Bradhurya virginiana O. Ktz.
Arecibo-Lares Road, June 21, '15, 7242. Manati, July 2, '15, 7694.
Dos Bocas, below Utuado, July 8, '15, 8043. Vega Baja, July 2, '15,
7749. Quebradillas, Nov. 22, 13, 5036.
On Mimosa ceratonia L.
Maricao, July 20, '15, 8899, 8868. Rio Arecibo, K. 64.7, July 8,
'15, 7770. Vega Baja, July 2, '15, 7744. Aibonito, Nov. 3, '13, 4020.
On Lonchocarpus glaucifolius Urb.
Quebradillas, June 20, '15, 7264.
On Erythfina micropteryx Poepp.
El Miradero, Aug. 11, '15, 9166.
On Teramnus uncinatus (L.) Sw.
Maricao, 3503, Jan. 10, '12, 228. Anasco, Oct. 12, '13, 3583, 3537.
Yau^o, Oct. 3, '13, 3136.
The form on Teramnus, Nos. 6554, 3583, 3503, is much branched at
the apices.
On Dolicholos reticulatus Millsp.
Florida Adentro, July 1, '15, 7682, 70(75. Vega Baja, Nov. 5, '13,
4263. Lares, Nov. 22, 13, 4933. Quebradillas, Nov. 22, 13, 4982. Bar-
celoneta, Aug. 10, '15, 9259. Rio Tanama, Aug. 6, '15, 7875.
On an unknown Legume by Heller, 6259.
This series of specimens on the various hosts shows considerable
variation, particularly as to setal apices. The mycelium and the capi-
tate hyphopodia, however, are quite characteristic and I am therefore
64 ILLINOIS BIOLOGICAL MONOGRAPHS [532
inclined to include all of these forms, growing as they do upon members
of one family, in one single species, recognizing as varieties such as
show well-marked and constant difference. These differences are usually
in the setae, which on some hosts are almost invariably simple, on others
slightly toothed, and on still others much toothed and contorted.
The species as manifest on some of its hosts clearly agrees with
M. bicornis Wint of Rabenhorst's Fungi Europaei, No. 3545, collected
on an unknown legume in Brazil, May 1885 ; with an authentic specimen
kindly loaned from the Kew Gardens ; with a specimen of the Heller col-
lection determined by Earle and with a cotype specimen kindly sent to me
by Dr. H. Sydow. It does not, however, conform to the description of
this species as given by Gaillard, or the original description of Winter,
in that the capitate hyphopodia are not often opposite, as they describe,
and as Gaillard figures them, nor are the setae deeply bifid as he describes
and figures. Since the original description was by Winter and the
Brazilian specimen was published by Winter, and our specimen is clearly
co-specific with the Brazilian specimen, it seems best to regard the pres-
ent series as M. bicornis.
On Meibomia, the tips are either acute and simple, or bifid or
toothed. Some collections are uniformly simple, others uniformly
toothed, yet the species appears to be identical. The collections on
M. adscendens and M. axillaris are rarely forked, while those on M. supina
are rarely undivided. One collection on M. axillaris, No. 7838, how-
ever showed a remarkable variant, with much and very irregularly
forked apices. The form on Erythrina has few setae and these sometimes
contorted at the tip. The specimens on Bradbury a show the capitate
hyphopodia somewhat more angular, with simple and unusally bent
setae.
95a. M. BICORNIS var. calopogonu var. nov.
On Calopogonium orthocarpum Urb.
Dos Bocas, below Utuado, July 8, '15, 8060, Dec. 16, '13, 6035.
Mayaguez, Oct. 31, '13, 3492, Apr. 10, '13, 372. Aguada, Nov. 22,
'13, 5087.
The form on Calopogonium shows perhaps greater differentiation
than any of the other forms. The setae are more rigid, more uniformly
fine toothed and the capitate hyphopodia are a trifle larger than on other
hosts.
533] MELIOLA IN PORTO RICO — STEVENS 65
95b. M. BicOBNis VAB. GALACTiAE var. nov.
On Oalactia duhia P. DC.
Rio Tanama, July 6, 15, 7856 (type).
The form on Galactia is well differentiated with large, capitate
hyphopodia and usually with divided setae.
/
Meliola sp. indet. Mayaguez, May 1, '13, No. 1067 on a legume
said by Percy Wilson to be "possibly a narrow leaved form of Clitoria
ruhiginosa Juss."
This collection consisting of a few leaves I have not named because
of the scanty material. It is a 4-septate form with no mycelial setae,
but with obtuse perithecial appendages which are curved, 27-51 x 7/i,
Perithecia 125-172/i in diameter. Mycelium quite typical in the manner
in which the threads anastomose. Capitate hyphopodia alternate, head
cell nearly globular. Mucronate hyphopodia opposite or alternate, neck
long, narrow. Spores 4-septate, 41 x 17/i, obtuse.
M. cookenana, Speg. Specimens on Lippia, Stachytarpheta and
Lantana, bearing this name are in the New York Garden collections.
The determination on Lantana is evidently erroneous. The other speci-
mens have not been examined.
66
ILLINOIS BIOLOGICAL MONOGRAPHS
[534
HOST LIST
Arranged by Families
Polypodiaceae
Adiantum latifolium
Adiantum sp.
Sehizaeaceae
Aneimia adiantifolia
Aneimia sp.
Gramineae
Andropogon bicomis
AndropogoD leucostachyns
Paspalum schreberianum
Paspalum gliitinosum
Panicum glutinosum
Lasiacis swartziana
Lasiacis compacta
Lasiacis divaricata
Ichnanthus pallens
Oplisinenus setarius
Olyra latifolia
Stenotaphrum secundatum
Chloris petraea
M. pteridicola
M. pteridicola
M. pteridicola
M. pteridicola
M. panici
M. panici
M. panici
M. panici
M. panici
M. panici
M. panici
M, panici
M. panici
M. panici
M. panici
M .panici
M. stenotaphri
M. panici
Six other species have been reported upon Graminae as follows:
M. bambusae, M. herculeus, M. arundinis, M. amphitricha, M. furcata,
M. substenospora.
Cyperaceae
Mariscus jamaieensis M. cyperi
Mariscus jamaieensis M. circinans
Rhynchospora aurea M. circinans
Cyperus sp. M. cyperi
Scleria sp. M. C3T)eri
Those previously reported upon the Cyperaceae are : M. circinans,
M. intricata, M. amphitricha, M. argentina, M. uleana, M. cyperi-uleana,
and M. cyperi-italica.
Palmae
Macrodiscus lactiflorus M. furcata
Acrista monticola M. furcata
Thrinax ponceana M. furcata
Thrinax praeceps M. furcata
Coccothrinax alta M. furcata
535] MELIOLA IN PORTO RICO — STEVENS 67
Roystonea borinquena M. denticulata
Previously reported on the Palmae: M. iquitosensis, M. manaosen-
sis, M, palmieola, M. amphitricha, M. contigua, M. furcata, M. hyalospora.
Araceae
Philodendron krebsii M. philodendri
Dieffenbachia seguine M. dieffenbaehiae
Liliaceae
Srailax coriacea M. smilacis
Three other species are reported on the Liliaceae, viz., M. hyalo-
spora, M. subdentata, M. dracaenicola.
Piperaceae
Piper medium M, tortuosa
Piper adunctum M, glabroides, M. piperis, and
M, gaillardiana
Piper peltatum M. tortuosa
Piper umbellatum M. tortuosa
Piper hispidum M. contorta
Piper blattarum M. paucipes
The species previously known upon Piper are: M. stenospora, M.
asterinoides, M. patouillardi, M. pululahuensis, M, furcata, M. tortuosa,
M. piperis, and M. glabra.
Myricaceae
Myrica cerifera M. manca
Urticaceae
Pilea parietaria M. earlii and M. triloba
Pilea nummularifolia M. earlii
Pilea sp. M. earlii
M. thomasiana has also been reported upon the Urticaceae.
Polygonaceae
Coccolobis pyrifolia M. praetervisa
Coecolobis sentenisii M. praetervisa
Coccolobis laurifolia M. rectangularis
Coccolobis sps. M. praetervisa
Magnoliaceae
Magnolia portoricensis M. magnoliae
M. amphitricha and M. piptochaeta have previously been reported
upon this family.
Anonaceae
Anona montana M, longipoda
M. uvariae has been reported upon this family.
Lauraceae
Persea gratissima M. perseae
68
ILLINOIS BIOLOGICAL MONOGRAPHS
[536
Ocotea leucoxylon ' M. ocoteae and
M. ocoteicola
Nectandra patens '' M. glabroides
The following species have heretofore been reported upon the Lau-
raceae : M. calva, M. ziz-zag, M. praetervisa, M. martiniana, M. penicil-
lata, M. anomala, M, manea, M. an
aphitricha, M. acutiseta.
Rosaceae
Rubus sp.
M, puiggarii
Leguminosae
Inga laurina
M. toruloidea
Mimosa ceratonia
M. bicornis
Lonehocarpus glaucifolius
M. bicornis
Cassia quinquadrangulata
M. toruloidea
Clitoria rubiginosa ( ?)
M. sp. ind.
• Meibomia axillaris
M. bicornis
Meibomia adscendens
M. bicornis
Meibomia supina
M. bicornis
Dalbergia monetaria
M. bicornis
Dalbergia sps.
M. bicornis
Andira jamaicensis
M. andirae
Bradburya virginiana
M. bicornis
Erythrina micropteryx
M. bicornis »
Teramnus uncinatus
M. bicornis
Rudolphia volubilis
M. rudolphiae
Calopogonium orthocarpum
M. bicornis var. ealopogonii
Galaetia dubia
M. bicornis var. galactiae
Dolicholus reticulatus
M. bicornis
Chamaecrista granulata
M. chamaecristicola
Chamaecrista ' ' glandulosa ' '
M. chamaeeristae
The following species of Meliola have been reported upon the Legu
minosae: M. desmodii, M. ludibunda, M. malacotricha, M. bicornis,
M. juruana, M. chamaeeristae, M. denticulata, M, harioti, M. pellucida,
M. zollingeri, M, andirae, M. gleditschiae, M. musae, M. pazschkeana,
M. pseudoanastomosans, M. subtorulosa, M. tamarindi.
Rutaceae
Pilocarpus racemosus M, pilocarpi
Amyris elemifera M. monensis
In addition to the species mentioned above, the following have been
reported upon the Rutuceae: M. obesa, M. evodiae, M. obesula, M.
tenella, M. microtheca, M. butleri, M. amphitricha, M. patens, M. ludi-
bunda.
537] MELIOLA IN PORTO RICO — STEVENS 69
Simarubaceae
Simaruba tulae M. glabroides
Meliaceae
Guarea trichilioides M. guareae and M. giiareicola
Other species described upon the Meliaceae are : M, macalpini, M.
sandarici, M. opposita, M. parvula.
Malpighiaceae
Banisteria laurifolia M. rectangularis
Byrsonima lucida M. byrsonimae
Two other species have been reported upon the Malpighiaceae,
namely, M. stuhlmanniana and M. crenata.
Euphorbiaceae
Drypetes sps. M. glabra
Acalypha bisetosa M. arecibensis
Jatropha hernandifolia M. jatrophae
Gymnanthes lucida M. gymnanthicola
Other forms reported upon the Euphorbiaceae are: M. malacotri-
cha, M. patella, M. verrucosa, M. acalyphae, M. manihoticola, M. comu-
caprae.
Anacardiaceae
Mangifera indica M. mangiferae
Spondias mombin M. comocladiae
Comocladia glabra M. comocladiae
The following species have been reported upon the Anacardiaceae :
M. rhois, M. guercinopsis, M. malacotricha, M. lanigera, M. irradians,
M. mangiferae, M. polytricha, M, anacardii, M. genieulata, M. coronata,
M. dracontomeli.
Aquifoliaceae
Ilex nitida M. raaricaensis
Other species reported upon the Aquefoliaceae are: M. ilicis, M.
lagersheiraii, M. cornuta, M. yerbae.
Celastraceae
Crossopetalum pallens M. compacta
Species previously reported upon the Celastraceae are : M, falcati-
seta and M. gymnosporiae.
Staphylaceae :
Turpinia panniculata M, guignardi
Sapindaceae
Serjania polyphylla M. serjaniae
PauUinia pinnata M. hessii and
M. pauUiniae
Thouinia striata M. thouiniae
70
ILLINOIS BIOLOGICAL MONOGRAPtIS
[538
Allophylus crassinervis M. thouiniae
Cupania araericana M. cupaniae and M. praetervisa
Cupania sps. M. cupaniae
Hypelate trifoliate M. glabra
Following is a list of the species previously reported upon the Sapin-
daceae: M. wrightii, M, parenchymata, M. sapindacearum, M. cruci-
fera, M. ambigua, M. thouiniae, M. araneosa, M. bombphlandi.
Rhamnaceae
Krugiodendron ferreum M. thouineae
Gouania lupuloides M. tenuissima
Previously reported upon the Rhamnaceae, M. scutiae.
Vitaceae
Cissus sicyoides M, merrillii
One other species is reported upon the Vitaceae, namely, M.
paracusis.
Tiliaceae
Triumfetta semitriloba M. triumfettae
Malvaceae
Sida urens M. molleriana •
Hibiscus tiliaeeus M. triumfettae
Two species have been reported upon the Malvaceae, viz., M. mol-
leriana and M. siflae.
Ochnaceae
Sauvagesia erecta
Guttiferae
Calophyllum calaba
Mammea americana
Clusia minor
Winteranaceae
Winterana canella
Flacourtiaceae
Casearia ramiflora
Casearia sylvestris
Casearia arborea
Casearia aculeata
Casearia sp.
Cambretaceae
Laguncularia racemosa
M. glabroides
iM. calophylli
M. pauUiniae
M. clusiae
M. thouiniae
M. pauUini'ie
M. pauUiniae
M. pauUiniae
M. pauUiniae
M. pauUiniae
M. lagunculariae and M. nigra
Only one species had heretofore been reported upon this family.
Myrtaceae
Amomis caryophyllata M. amomicola
Psidium guajava M. psidii
539] MELIOLA IM PORTO RICO — STEVENS 71
Myrcia deflexa M. helleri
Myrcia splendens M. helleri
Eugenia stahlii M. helleri
Eugenia monticola M. helleri
The following have been recorded upon the Myrtaceae : M. psidii,
M. helleri, M, puchella, M, arborescens, M. laxa, M. densa, M. horrida,
M. cladotricha, M. elavispora, M, valdivivensis.
Melastomataceae
Mieonia laevigata M. melastomacearum
Miconia racemosa M. melastomacearum
Mieonia sentenisii M. mieonieicola
Miconia prasina M. miconiae
Clidemia hirta M. melastomacearum
Clidemia strigillosa M. melastomacearum
Species other than the above which have been reported upon the
Melastomataceae are : M. heudeloti, M. weigettii, M. memecyli, M. affinis.
Araliaceae
Dendropanax arboreum M. didymopanicis
Dendropanax laurifolium M. didymopanicis
Other species on the Araliaceae are : M. araliae, M. dichotoma, M.
kusanoi, M, heterosetae, M. pectinata, M. leplidae.
Myrsinaceae
Ardisia guadalupensis M. myrsiniacearum
Parathesis serrulata M. parathesicola
The following species have been reported upon the Myrsinaceae:
M. cladotricha, M. quercinopsis, M. delicatula, M. armata, M. groteana,
M. perigrina, M. maesae.
Sapotaceae
Lucuma multiflora M. lucumae
Dipholis salicifolia M. dipholidis
Chrysophyllum sp. M. ocoteicola
M. brasiliensis is the species previously reported on the Sapotaceae.
Oleaceae M. raayepeae
Mayepea domingensis M. mayepeicola
M, jasminicola has been reported on this family.
Apocynaceae
Plumiera krugii M. tabernaemontanae
Tabernaemontana oppositifolia M. tabernaemontanae
Rauwolfia nitida M. tabernaemontanae
Forsteronia corymbosa M. tabernaemontanae var. for-
steroniae
72 ILLINOIS BIOLOGICAL MONOGRAPHS [540
Other species previously recorded upon the Apocynaceae are: M.
levipoda, ]\I. simillima, M. intermedia, M. willoughbyae, M. clavitispora,
M. compositarum, M. membranacea, M. laevigata.
Convolvulaceae
Ipomoea cathartica M. clavulata, M. ipomoeae, and
M. quadrispina
Ipomoea tiliacea M. clavulata and M. ipomoeae
Ipomoea batatas M. clavulata
Ipomoea sps. M. clavulata and M. ipomoeae
Other species recorded for this family are: M. decidua, M. ambi-
gua, M. melacotricha, M. ipomoeaephile, M. merremiae, M. franceville-
ana, M. caymanensis, M. hewittiae.
Borraginaceae
Cordia nitida M. longipoda
Cordia sps. M. longipoda
Tournefortia hirsutissima M. longipoda
Varronia sps. M. molleriana
In addition to the above, M. usteriana has been reported upon the
Borraginaceae.
Verbenaceae
Stachytarpheta cayennensis M. glabroides
Lantana odorata M. ambigua.
Lantana camara M. ambigua
Lantana sps. M. ambigua
Lantana sps, M. cookeana (?)
Avicennia nitida M. sepulta
Other species recorded on the Verbenaceae are: M. durantae, M.
sakawensis, M, caUicarpae, M. clerodendricola, M. amphitricha, M. lip-
piae, M. coronata, M. vitis, M. lantanae.
Labiatae
Hyptis lantanifolia M. hj-ptidicola
H3T)tis capitata M. hyptidicola
Hyptis pectinata M. hyptidicola
Hyptis sp. M. hyptidicola
Other species recorded on the Labiateae are: M. anastomosans, M.
inermis, M. pelliculosa, M. hyptidis.
Solanaceae
Solanum rugosum M. glabroides
Solanum persicifolium M. glabroides
Solanum jamaicense M. solani
Capsicum baccatum M. capsicola
Oestrum laurifolium M. gesneriae
Oestrum macrophyllum M. gesneriae
541]
MELIOLA IN PORTO RICO — STEVENS
73
Other species on the Solanaeeae are: M. winteri, M. plebeja, M.
glabra, M. solanicola Gaill., M. acervata, M. solanieola P. Henn.
Bignoniaceae
Macrodiscus lactiflonis M, furcata
Tecoma pentaphylla M. tecomae and M. bidentata
Tecoma sps. M. tecomae
Tabebuia haemantha M. bidentata
Schlegelia sps. M. glabroides var. schlegeliae
Species previously recorded upon the Bignoniaceae are: M.
arachnoidea, M. bidentata, M. furcata, M. harioti, M. lanceolato-setosa.
Gesneriaceae
Gesneria albiflora
Acanthaceae
Hygrophila brasiliensis
Rubiaceae
Gonzalagunia spicata
Randia aculeata
Erithalis fruticosa
Chiococca alba
Guettarda ovalifolia
Palicourea crocea
Palicourea riparia
Palicourea domingensis
Palicourea sps.
Borreria laevis
Borreria ocimoides
Coccocypselum repens
Psychotria pubescens
Psychotria grandis
Psychotria bertiana
Psychotria sp.
Rubiaceae indet.
Other species on the Rubiaceae are : M. intermedia, M. sandicensis,
M. longiseta, M. falcata, M. manca, M. rubicola, M. cryptocarpa, M. gla-
bra, M. palawanensis, M. pencilliformis, M. asterinoides, M. mitchelliae.
Cucurbitaceae
Cayaponia (?) M. cucurbitaeearum
Three species, none of them with forked setae, have been noted upon
the Cucurbitaceae, namely : M. triloba, M. malacotricha, M, aciculosa.
M. gesneriae
M. irregularis
M. psychotriae
M. psychotriae
M. psychotriae
M. chiococcae and
M. psychotriae
M. psychotriae
M. mayaguesiana
M. mayaguesiana
M. mayaguesiana and
M. glabra var. psychotriae
M. mayaguesiana and
M, glabra var. psychotriae
M. psychotriae
M. psychotriae
M. glabra var. psychotriae
M. glabra var. psychotriae
M. glabra var. psychotriae
M. glabra var. psychotriae
M. glabra var. psychotriae
M. psychotriae
74 ILLINOIS BIOLOGICAL MONOGRAPHS [542
Compositae
Pseudelephantopus spicatus M. cyclopoda
Eupatorium odoratum M. compositarum
Eupatorium portoricense M. compositaruin var. portori-
censis
Species previously reported upon the Compositae are : M. sororcula,
M. spegazziniana, M. mikaniae, M. compositarum, M. inermia, M. am-
phitricha, M. tortuosa.
Host unknown M. bidentata
Host unknown M. amphitriciia
Host unknown M. tuberculata
Host unknown M. paulliniae
Host unknown M. aibonitensis
Host unknown M. sp. ind.
543] MELIOLA IN PORTO RICO — STEVENS 75
EXPLANATION OF PLATES
All plates are from photo-micrographs made by Mr. A. G. Eldredge.
They were reduced 28% in reproduction. The abbreviations l.p.
and h.p. indicate low power and high power with a magnification of ap-
proximately 75 and 355 diameters respectively. Scales showing the
magnification are given in plate V ; the smallest divisions are 10/a wide.
76 ILLINOIS BIOLOGICAL MONOGRAPHS [544
EXPLANATION OF PLATE I
Fig. I. M. puigiarii : portion of perithecium and larvaeform appendages, h.p.
No. 8270.
Fig. 2. M. manca : mycelium, capitate hyphopodia, a germinating spore, h.p. No.
1292 N. A. F.
Fig. 3. M. guignardi : general type of colony, mycelium and capitate hyphopodia.
No. 8922. l.p.
Fig. 4. M. glabra : showing type of mycelium and hyphopodia. l.p. Rabenhorst,
Fung. Europ. Xo. 3849.
Fig. 5. M. sepulta : type of colony and mycelium, l.p. Heller's collection. No.
6416.
Fig. 6. M. irregularis : spores showing irregularity in size of cells, h.p. No. 9283
(type).
Fig. 7. M. solani: mycelium showing opposite hyphopodia. h.p. No. 5750 (type).
Fig. 8. M. hyptidicola : a showing perithecia, crooked mycelium, and oval hypho-
podia. l.p.
b mycelium and hyphopodia in greater detail, h.p. No. 8526.
Fig. 9. M. cyclopoda : general view showing colony, rough perithecia, and char-
acter of mycelium and hyphopodia. l.p. No. 7733 (type).
Fig. 10. M. perseae : irregular, crooked mycelium, mucronate hj-phopodia and an-
gular capitate hyphopodia. h.p. No. 8212 (tjrpe).
Fig. II. M. longipoda: mycelium, capitate and mucronate hyphopodia, ascospores
and a young perithecium. h.p. No. 9329.
545]
MELIOLA IN PORTO RICO-STEVENS 77
PLATE II
78 ILLINOIS BIOLOGICAL MONOGRAPHS [546
EXPLANATION OF PLATE II
Fig. 12. M. melastomacearum : perithecia, mycelium and hyphopodia. l.p. No.
8956.
Fig. 13. M. glabroides : germinating spore with hyphopodia. h.p. No. 3371 (type).
Fig. 14. M. triloba : spore and young mycelium with typically lobed capitate hy-
phopodia. h.p. No. 1038.
Fig. 15. M. compositarum : colony showing perithecium wit^ larvaeform append-
age, mycelium and hyphopodia. l.p. Heller, No. 6185 (co-type).
Fig. 16. M. compositarum var. portoricensis : showing mycelium and capitate hy-
phopodia. h.p. No. 7723.
Fig. 17. M. calophylli: irregular mycelium and head cells, h.p. No. 7059 (type).
Fig. 18. M. arecibensis : mycelium and crowded hyphopodia. h.p. No. 365a (type).
Fig. 19. M. miconieicola : loose, scant mycelium with distant hyphopodia. l.p.
No. 8639 (type).
Fig. 20. M. parathesicola : capitate hyphopodia very crowded, h.p. No. 7286.
Fig. 21. M. toruloidea : perithecia, young and old, mycelium and hyphopodia.
l.p. No. 8394 (type). A few setae are visible on the perithecia.
Fig. 22. M. comocladiae : colony showing character of mycelium and hyphopodia.
l.p. No. 9015 (type).
547] MELIOLA IN PORTO RICO — STEVENS 79
PLAVE III
80 ILLINOIS BIOLOGICAL MONOGRAPHS [548
EXPLANATION OF PLATE III
Fig. 23. M. tortuosa : perithecium and appendages, with tortuose tips. l.p. No.
4714.
Fig. 24. M. chamaecristicola : showing thin setae on perithecia. l.p. No. 61 13
(type).
Fig. 25. M. rectangularis : showing right-angle type of branching, h.p. No. 7292
(type).
Fig. 26. M. chiococcae : mycelium, angular hyphopodia, young perithecium with
radiating mycelium, h.p. No. 7743 (type).
Fig. 2J. M. pteridicola : showing parallel coursing of mycelium, l.p. No. 7814
(type).
Fig. 28. M. cupaniap : showing perithecia! setae, l.p. No. 9143 (type).
Fig. 29. M. miconiae : general habit of mycelium, l.p. No. 9366.
Fog. 30. M. contorta : perithecia and crooked perithecial setae, l.p. No. 8225
(type).
Fig. 31. M. mayaguesiana : ascospore, mycelium and capitate hyphopodia. h.p.
No. 7157 (type).
Fig. ^2. M. clavulata: swollen setal tips. h.p. No. 7837.
Fig- Zi- ^I- praetervisa : spore and mycelium showing characteristic conic capitate
hyphopodia. h.p. No. 5653a.
;:,-*, «-«JU T''
dOQES.
J- ?xi.'
549] MELIOLA IN PORTO RICO — STEVENS 81
PLATE IV
82
ILLINOIS BIOLOGICAL MONOGRAPHS
[550
EXPLANATION OF PLATE IV
Fig. 34. M. andirae : a spore, mycelium showing characteristic opposite capitate
hyphopodia. h.p. Earle (co-type). No. 6448.
Fig. 35. M. monensis : showing typical hyphopodia. h.p. No. 6158 (type).
Fig. 36. M. thouiniae : capitate and mucronate hyphopodia. h.p. Heller, l\o. 6435
(type).
Fig. 37. M. amomicola: typical opposite hyphopodia. h.p. No. 7054 (type).
Fig. 38. M. stenotaphri : crooked mycelium, long setae, l.p. No. 8023.
Fig. 39. M. capsicola : showing irregular hyphopodia. l.p. No. 8019 (type).
Fig. 40. M. paucipes : distant hyphopodia and long, black setae, l.p. No. 7463
(type>.
Fig. 41. M. rudolphiae: mycelium, capitate hyphopodia and a spore, h.p. No. 8698.
Fig. 42. M. serjaniae : alternate capitate and opposite mucronate hyphopodia. h.p.
No. 425 (type).
Fig. 43. M. ocoteicola : characteristic capitate hyphopodia. h.p. No. 7560 (type).
Fig. 44. M. polytricha K. & C. : edge of colony showing habit. "No. 1262 on
Cunonia capensis. Grahamstown, Cape, ex Kalchbrenner." h.p. (type).
\
^ z:^
551] MELIOLA IN PORTO RICO — STEVENS 83
PLATE V
84 ILLINOIS BIOLOGICAL MONOGRAPHS [552
EXPLANATION OF PLATE V
Fig. 45. M. earlii: colony showing mycelial character, l.p. No. 7685 (type).
Fig. 46. M. mayepeae : general character of colony, l.p. No. 7468 (type).
Fig. 47. M. lucumae : mycelium and capitate hyphopodia, young perithecium. l.p.
No. 8164 (type).
Fig. 48. M. tecomae: showing curved tips of setae, h.p. No. 9332 (type).
Fig. 49. M. ipomoeae : colony, mycelium, opposite hyphopodia, long setae, peri-
thecia. l.p. No. 6563.
Fig. 50. M. magnoliae : seta! tip showing forking, h.p. No. 4738 (type).
Fig. 51. M. cucurbitacearum : showing forking of setal tips. h.p. No. 8732 (type).
Fig. 52. M. hessii : a setum showing character of forking, a bit of mycelium, l.p.
No. 9367 (type).
Fig. 53. M. quadris'pina : general type of colony, l.p. No. 8163.
Fig. 54. M. philodendri : primary branching of setal tip. h.p. No. 4346.
Fig. 55. M. gaillardiana : crested setum. h.p. No. 7794 (type).
Fig. 56. M. dieffenbachiae : setal tip. h.p. No. 8148 (type).
Fig. 57. M. bicornis, "authentic specimen" from Kew gardens determined by
Winter : spore, mycelium and capitate and mucronate hyphopodia. h.p.
Fig. h.p. millimeter scale ruled to i/io mm. high power.
Fig. l.p. ditto with low power magnification.
^ 1
553]
MELIOLA IN PORTO RICO — STEVENS
85
ALPHABETICAL LIST OF SPECIES
Meliola aibonitensis, i6
ambigua, 50
amomicola, 40
amphitricha, 49
andirae, 38
araliae, 40
arecibensis, 23
bicornis, 62
bicornis var. calopogonii, 64
bicornis var. galactiae, 65
bidentata, 62
byrsonimae, 49
calophylli, 22
capsicola, 41
chamaecristae, 47
chamaecristicola, 26
chiococcae, 27
circinans, 33
clavulata, 37
clusiae, 52
comocladiae, 25
compacta, 30
compositarum, 21
compositarum var. portoricensis, 22.
contorta, 32
cookeana, 65
Meliola cucurbitacearum, 58
cupaniae, 29
cyclopoda, 16
cyperi, 34
denticulata, 57
didymopanicis, 39
dieffenbachiae, 62
dipholidis, 44
earlii, 47
furcata, 58
gaillardiana, 61
gesneriae, 47
glabra, 13
glabra var. psychotriae, 14
glabroides, 18
glabroides var. schlegeliae, 20
guareae, 55
guareicola, 53
guignardi, 12
gymnanthicola, 49
helleri, 56
hessii, 59
hyptidicola, j6
86
INDEX
[554
Meliola ipomoeae, 54
irregularis, 15
jatrophae, 48
lagunculariae, 17
longipoda, 17
lucumae, 49
magnoliae, 55
manca, 11
mangi ferae, 57
maricaensis, 31
mayaguesiana, 2^
mayepeae, 48
mayepeicola, 51
melastomacearum, 18
merrillii, 61
miconiae, 30
miconieicola, 2^
moUeriana, 29
monensis, 38
myrsinacearum' 40
nigra, 27
octoeae, 29
ocoteicola, 45
panici, 42
parethesicola, 24
paucipes, 42
Meliola paulliniae, 45
philodendri, 60
pilocarpi, 41
piperis, 59
perseae, 17
praetervisa, 38
psidii, 36
psychotriae, 51
pteridicola, 28
puiggarii, 11
quadrispina, 60
rectangularis, 2y
rudolphiae, 43
sepulta, 14
serjaniae, 44
smilacis, 56
solani, 15
sp. indet., 65
stenotaphri, 41
tabernaemontanae, 50
tabernaemontanae var. f orsteroniae, 50
tecomae, 53
tenuissima, 24
thouiniae, 39
tortuosa, 26
toruloidae, 25
triloba, 20
triumfettae, 30
tuberculata, 23
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