. Botanical gazette. Plants. 0. y2--^K 1. p. zosterifolius, Schum. 2. P. acutifolius, Link. 3. P. Hillii. lines wide, 3- nerved, the lateral nerves delicate and nearer the margins than the midrib, the midrib often com- pound below, sti pules free, whitish, striate, obtuse, 3-5 lines in length. Pedun- cles short, spreading or somewhat recurved, more or less clavate ; spikes capitate, 3-6 fruited. Fruit obliquely obovate, about i^ lines long by lyi lines broad, tricarinate on the back, the middle keel more or less undulate, compressed on the sides, the front slighdy arched, obtuse at base; style
. Botanical gazette. Plants. 0. y2--^K 1. p. zosterifolius, Schum. 2. P. acutifolius, Link. 3. P. Hillii. lines wide, 3- nerved, the lateral nerves delicate and nearer the margins than the midrib, the midrib often com- pound below, sti pules free, whitish, striate, obtuse, 3-5 lines in length. Pedun- cles short, spreading or somewhat recurved, more or less clavate ; spikes capitate, 3-6 fruited. Fruit obliquely obovate, about i^ lines long by lyi lines broad, tricarinate on the back, the middle keel more or less undulate, compressed on the sides, the front slighdy arched, obtuse at base; style nearly facial, short, recurved; embryo apex pointing transversely inwards. New York and Michigan, August. In general appearance similar to P. pauciflorus, but allied by its fruit to the zosterifolius group, and especially to P. acutifolius, Link., which it greatly resembles in the spikes and fruit.*—Thomas Mo- RONG. *The above tigures, drawn from specimens in my possession, wil I serve to show the similarity between tlie spikes and fruil of the three species above mentioned. In all these cases tlie dorsal keel is undulate on the maririn : it is sometimes distinctly toothed or entire. It should he siid, also, that while the common form of the nutlets of F. zoHtevifoUiiK and P. (iruUfoUm is sliown, the European specimens often have a sharp projecting angle on the face, about one-third of the distance Irom the base, a peculiarity which I have not observed in tlie American P. zosterifolius or P. Hillii. a. nutlet much magnified ; h. embryo of the same; c. natural size; d. fruit Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Hanover, Ind. : J. M. Coulter
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Keywords: ., bookcollectionbiodiversity, bookcollectionnyb, booksubjectplants
