id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
cord-022643-2j559muh	Chance, Gail D.	SYSTEMATIC IMPLICATIONS OF SEED COAT MORPHOLOGY IN NAMA (HYDROPHYLLACEAE)	1984-07-01		.txt	text/plain	4604	282	57	Nevertheless, similarities among species in seed coat organization, particularly, outer testa anatomy and wall thickening‐pitting patterns allow the recognition of six groups among examined taxa; furthermore, seed coat features often suggest both intra‐group and inter‐group relationships. Hitchcock's (1933) observation that seeds of different species exhibit variously patterned surfaces offers a promising point of departure for studies aimed at elucidating relationships in Nama. Seed Group 3 (Fig.11-19 )-Thesixincluded species are characterized by a reticulate seed coat in which pits-perforations (Fig. 11 , 15) are found in radial walls of the reticulum cells. Seed Group 4 (Fig. 20-35 )-Each ofthe nine species in this group produces a chambered coat ranging from weakly to deeply reticulate; and all possess localized thickenings in the radial walls of reticulum cells (Fig. 22, 23, 27-29, 32, 35) . In contrast to other species ofits group, unbranched thickenings often traverse the floor of reticulum cells (Fig. 35) and are reminiscent of those found in Seed Group 5.	./cache/cord-022643-2j559muh.txt	./txt/cord-022643-2j559muh.txt