Class XXI. Order III. 335 



neath. Root long, solitary, undivided, terminating in a small 

 sheath. Flowers minute, proceeding from a marginal fissure. 



TRL1NDR1A. 



293. ER1OCAULON. 

 ERIOCAULON PELLUCIDUM. Mich. Transparent Pipewort. 



Glabrous ; leaves subulate, channelled, pellucid, five 

 nerved ; stem solitary ; head somewhat apple-shaped ; 

 involucre hardly distinct, with obtuse scales. Mich. abr. 



Syn. ERIOCAULON SEPTAXGULARE ? Sm. 



Found in ponds, growing under water, a part of the stem only 

 projecting above the surface, and supporting a small, flat head 

 /of obscure flowers. The whole plant appears made up of a 

 mnss of cells, whose reticulated appearance is very obvious, 

 particularly in the root. The leaves grow in a tuft at the bot- 

 tom. They are one or two inches long, narrow, tapering to a 

 point, transparent at base, like the root. Stem erect, furnished 

 with a sheath at base, simple, with six and sometimes seven an- 

 gles, terminating in a small, hemispherical head of close flow- 

 ers. August. 



394. CAREX. 



Subgenus . Stigmas two. 



CAREX CEPHALOPHORA. Willd. Headed Sedge Grass. 



Spikes androgynous, aggregate in an elliptic head ; 

 fruit ovate, compressed, bifid, margined, ciliate-serrate 

 above. 



A slender sedge with a single spike or head, barren at top. 

 Found in woods. June. Perennial. 



CAREX STIPATA. Willd. Close spiked Sedge. 



Spikes androgynous, about five, oblong, aggregate ; 

 fruit spreading, ovate, acuminate, two pointed, flat and 

 convex, nerved ; culm triangular, rough. 



A stout, but not very tall species, common in wet meadows, 

 forming tufts. Spikelets five or six, barren above, crowded into 

 an irregular, interrupted spike. May, June. Perennial. 



