Poa. TRIANHRIA DIGYNIA. 339 



and margins of the sheaths fringed, with long delicate white hairs.— 

 Fanicle oblong, composed of many, capillary, alternate, horizontal, 

 ramous branches, their insertions and sub-divisions are fringed with 

 a few, tine, white hairs. Spikelets minute, pedicellecl, depending, 

 from four to six-flowered. — Ca/i/x smooth — Corol, inner \aive fring- 

 ed with hairs in the back — Seed oblong, brown, smooth. 



14. P. punctata. Linn. Sp. Tl. ed. Willd. i. 395. 



Erect, smooth, from six to eighteen inches high. Panicle oblong; 

 ramifications simple, expanding, lower ones verticelled. Spikelets 

 from twelve to fourteen-flowered, smooth. — See(f obliquely oblong. 



This species grows in tufts on pasture ground. 



Culms erect, generally simple, round, smooth ; from six to eigh- 

 teen inches high. — Leaves small, smooth ; mouths of the sheaths 

 bearded. — Panicle oblong; ri mijications simple, expanding, the 

 lower ones collected into one verticel ; above alternate. — Spikelets 

 pedicelled, rather remote, linear, from twelve to fourteen-flower- 

 ed Ca/^x and corol smooth, thin, showing the unexpanded an- 

 thers and stigmas through them. — Seed oblong, smooth, brown. 



15. P. elegans. R. 



Sub-erect, smooth, from one to three feet high. Panicle oblong, 

 nodding ramifications solitary, ramous, adpressed. Spikelets from 

 eight to twelve-flowered. Seec? globular. 



A very elegant, tall, delicate species, a native of moist pasture 

 ground. 



Culms simple, at the base spreading for a few inches, the remam- 

 ing partis erect, round, smooth ; from one to three feet high.— Leares 

 few and very small, smooth in every part, except the mouth of the 

 sheaths, which are bearded.— Pamc/es linear-oblong, nodding, com- 

 posed of erect, adpressed, distinct, somewhat remote ramification, 

 each of which forms a small, but similar panicle. Partial racks 

 with the angles hispid. Spikelets pedicelled, linear, from eight to 

 twelve-flowered, puiplish. — Corol, outer valve three-nerved. — Seed 

 globular, smooth, and brown. 



Qq2 



