*>K NORTH AMERICA. 91 



472, flowers size of the first, but of an incarnate 

 color, instead of blue, the calix is margined of 

 same color. Autumnal. 



971. ANTIIOPOGON ALB ESC ENS Raf. stem te- 

 rete trifid,leaves patent narrow lanceolate acute, 

 peduncles terete, calix deeply 4fid, segments 

 ovate lanceolate obtusely acuminate, 2 nar- 

 rower lanceolate, corolla hardly longer than 

 calix unequally denticulate in Louisiana, col- 

 lected by Riddel, sent me anonymous, very dis- 

 tinct by smaller shorter flowers nearly white or 

 blush color, leaves nearly as in A. virgatum 

 but broader and spreading, 2 inches long, flow- 

 er only uncial. 



972. ANTIIOPOGON BREVIFOLIUM Raf. humble, 

 unifiore ? foliose anceps, lower leaves cnneate 

 or spatulate acute, upper ovatoblong short 

 acute, calix with segments shorter ovate Ian- 

 ceol. acutely acuminate, corolla double of calix 

 fringed in Mts. Alleghanies of Lycoming Cy. 

 Pennsylv. blossoming in November, stem 4 to 6 

 inches high, leaves very short 4 to 6 lines long 

 and reaching to near the flower, which is small 

 though elongate uncial, apparently incarnate in 

 the specimen, nearer to A. incarnatum than 

 to A. crinitum, perhaps a variety of it. A. 

 crinitum differs from all my 4 sp. by leaves 

 ovate lanceolate subdeltoid, flowers large with 

 rounded segments deeply fringed, peduncles 

 naked 4gone &c. All belong to the G. An- 

 thopogon of Necker 1790, and have the calix 

 unequal as in the whole family. 



973. PLEIENTA QUINQUENERVIA Raf. stem 

 terete trichotome, leaves broad oblong lanceo- 

 late acute thin 5nerved; flowers corymbose, 

 calix base membranose, 6-7parted, segments fo- 



*. siih*a"nl * corolla segment* 



