SchpuS. TRIANDRIA MONOGYNIA. 229 



eels small, bristle-like. Spikes minute, globular, many- 

 flowered. Stamens, from one to two, rarely three. Stigma 

 two or three-cleft. Seed nearly globular, compressed on the 

 inside, scabrous, white. 



42. S. quinquangularis. Vahl. enum, ii. 279. 



Culms from one to two feet high, five-angled. Umbel 

 super-decompound ; involucre much shorter than the umbel ; 

 scales oval, monandrous. Seed three-sided, rugose. 



A native of similar places Avith the last species. 



Root fibrous. Culms as in complanatus, and tetragonus, 

 and of the same height, but in this species always five-sided. 

 The angles sharp and the sides concave. Leaves as in S. 

 complunatus. Umbel super-decompound, rather thin, and 

 unequal as in Sc. tetragonus. Involucre three-leaved, the 

 largest about the length of the umbel. Spikes mostly pedi- 

 celled, oval, very small, few, from six to eight-flowered. 

 Scales oval. Stamen one. Stigma three-cleft. Seed oblong, 

 three-sided, ru<>ose. 



43. S. pallescens* R. 



Culms from six to ten inches high, culumnar. Umbel su- 

 per decompound, rather shorter than the involucre, monan- 

 drous. Scales obtuse. Seed obcordate, without angles, streak- 

 ed, and wrinkled. 



A native of low pasture ground. 



Root fibrous. Culms nearly erect, from six to ten inches 

 high, mostly naked, nearly round and striated. Leaves 

 sheathing, as long as the culm, concave ; edges slightly serru- 

 late, somewhat woolly. Umbel terminal, super-decompound, 

 large in proportion to the rest of the plant. Involucre two- 

 leaved, nearly erect, opposite margins slightly serrulate, long- 

 er than the umbel, a few small scales intermixed. Spikes 

 very minute. Scales oval, concave. Stamens solitary. Style 

 two-cleft. Seed obcordate, a little compressed, striated longi- 

 tudinally, and wrinkled transversely. 



o 3 



