KH¥NCHOSPORA. TRIANDRIA. MONOGYNIA. 5i) 



bracts at the base. S/iikes lanceolate, acute at each end ; 

 glumes crowded, white, lanceolate. Stamens 3 ; sometimes 2, 

 or 1. Seed somewhat stipiiate, nearly lenticular, acuminate 

 with the remains of the style, smooth. Style 2-cleft. Bristles 

 about as long as the seed. 

 Hab. In swamps and bog-meadorvs ; common. July — Sep- 

 tember. 



2. R, fusca R. ir S.P culm triquetrous; leaves linear, 

 carinate ; fascicles of spikes alternate, pedunculate ; spikes 

 ovate ; glumes ovate, brown ; seed ovate, with an acute black 

 tubercle. Schcenv s fuscus Muhi. Gram. p. 6. Rhyn. 

 fusca R em. (^ S c htilt, II. p. 88 .'' R. alba 0. fusca 

 Pursh FL I. p. 49.? 



Culm 2 feet high. Leaves smooth. Sfiikes bracteate ; bracts 

 setaceous, longer than the spikes. Glumes mucronate. Style 

 2-cleft. Seed brown, rugose, as long as the hispid bristles. 



Hab. In New-York. Muhlenberg, -f. 



3. K. glomerata Vahl: spikes in corymbose fascicles, 

 very distant, in pairs ; culm obtusely triangular; leaves flat; 

 seed obovate-cuneiform, \ery smooth, as long as the tubercle. 

 Vahi Enum.U. p.234. P ur s h FL \. p. 43. Elliott 

 Sk. 1. p. 61. R em. ^ S c hu It. II. p. 8G. Schcenub 

 glomerulus L i n. Sp. pi. 65. W i 1 1 d. Spec. I. p. 266. (excl. 

 syn. Thunb.) Muhl. Gram. p. 8. Walt. Car. p. 69. 

 S. culmo triquetro, pedunculis geminis lateralibus, &c. G ron. 

 Virg. 131. Rhyn. capitellata E I li o 1 1 Sk. \. p. 61. Vahl 

 Enum. II. p. 235 .'* Schcen. capitellalus M i c h. FL I. p. 36. 



Culm a foot or 18 inches high, slender, smooth and leafy. Leaves 

 about a line and a half wide, carinate, rough on the margin. 

 Flowers in glomerated heads or corymbs, of which there are 

 generally three axillary pairs and one terminal one. S/iikes 

 lanceolate. Glumes brown, lanceolate, carinate, mucronate. 

 Stamens 3. Style 2-cleft. Seed brownish, shining, com- 

 pressed. Tubercle as broad as the seed at the base. Bristles 

 6, retrorsely scabrous, nearly as long as the tubercle. 



Hab. In swamps and bog-meadows; common. July — Sep- 

 tember. 



I am a little doubtful respecting the synonyms of Mich aux 

 and Va h I above quoted, but I have no hesitation in referring 

 the R. cafiitellata oi E I lio 1 1 to this species, as his descrip- 

 tion agrees minutely with our plant, as do also specimens of 

 R. cafiitellata sent to me from the Southern States by Mr. 

 Sc hiv einitz. The Schcenus cafiitatus oi Muh I en berg 

 is probably also not distinct from this species. 



4. R. capillace.a^: spikes 3 — 5, nearly terminal ; culm 

 triquetrous, somewhat leafy ; leaves setaceous ; seed stipitate. 



