TRIANDIIIA MONOG^KIA. 



57 



aeiileatis ; panicula ter- 

 mlnali, prajloiiga, diffusa ; 

 semine ovato, longitudi- 



naliter rugoso. 



E. 



Sp. pL 1. p. 266. 



leate, with the sharp ser- 

 ratures bending forwards; 

 panicle terminal, very 

 long, diffuse ; seed ovate, 

 longitudinally wrinkled. 



Stem 6 



$ 



10 feet high. 



Leaves 2—3 feet long, 8—10 lines wide, 



and midrib most sharply serrate. Flowers 



fn compound panicles lateral and terminal, near the summit of the 



stem, forming altogether one obl(mg, conical, panicle 12 — 20 inches 



loug 



Seed not compressed, longitudinally wrinkled, pointed by the 

 tapering of its own body, not by an attached tubercle, and without 



surrounding bristles- 



i 



Grows in ponds, and in fresh marshes. 

 Flowers August — September. 



Sa w grass. 



Fresh water Mar slu 



RHYNCHOSPORA. 



Valycis sqiiamse in spi- 

 cam fasciculatae, inferio- 



■ 



Scales of the Caly 



collected into a spike, tli 



res vacuse. Corolla 0. I inferior ones empty. Co 



Sti/lus basi persistens. rolla 



Seta? 



Stijle persistent 



at base. Bristles at the 



1. Alb 



base of the seed 



R 



facie ui 

 perne 



spicis 



ymboso 



culmo 



Spikes in 



vmbose 



triquetro 



su- 

 foliis 



setis 



ibus, canaliculatis 

 seminis decern 



clusters ; 



angled ; 



channelled 

 the seed li 



stem above, 3 



leaves linear, 



; bristles of 



Hort. Kew. i. p. 127 



Vahl. Enum. pi. 2. p. 236. Pursh, 1: p. 49. 

 Schcenus albus, Mich. 1. p. 34. 



Hoot fibrous. Stem about a foot high, very slender, glabrous. 

 J^aves linear, glabrous. Floivers in small corymbose clusters axilla- 

 ry and terminal. Spikes {\x&\U^Ym. GZwrn^s nearly white. <Sf^erf len- 

 ticular, nearly smootb, cr ' ""' ...■'. 



trorsely scabious. 



re- 



Mul 



O 



H 



