*8 TRIANDRIA.— DIGYN1A. 



what verticillate,spreading ; flowers serrulate ciliate, 

 transversely rugose ; leaves short, subcordate j 

 culm procumbent at base. 

 HAB. Cedar swamps. July— Aug. U . Stoloniferous ; 

 spik. 3—50^. ; fi. alternate. 



47. MILIUM. Millet-grass. 



4. M. effusum: panicle diffuse, compound; branches 

 horizontal ; glumes ovate, very obtuse ; corolla 

 awnless, smooth and shining ; leaves broad-linear. 

 HAB. Woods. July. U . 5—8/*. high, smooth; 

 panic, alternate, loose. 



3. M. amphicarpon : leaves linear-lanceolate, hairy, 

 ciliate ; panicle simple, contracted, bearing perfect 

 flowers ; fertile flowers in solitary, elongated, radi- 

 cal scapes at length subterraneous. 

 HAB. Sandy swamps. Aug. — Sept. % . Cespitose r 

 1 — 2 ft. high, assurgent ; panic, appress., rad.fi. at 

 length ventricose ; glum, acuminate. 



3. M. pungens : culm erect ; leaves lanceolate, very 

 short, pungent, at length involute ; panicle con- 

 tracted ; branches generally by pairs, 2-flowered j 

 flowers awnless, ovate ; corolla hairy. 

 HAB. Rocky hills. May. % . 12— 18 in. high, ri- 

 gid ; culm leaves very short; panic, few -fi. ; style 

 2-parted ; nect. lanceolate. 



48. PIPTATHERUM. 



P. nigrum: panicle simple ; flowers racemose, ovate- 

 lanceolate ; corolla black, hairy ; awn as long again 

 as the valves. 



HAB. Mountains and rocky places. Aug. 1J. . Culm 

 2 — 3 ft. high, leafy; panic, few-fl.fiexuous ; nect. 

 ovate-lanceolate. 



49. STIPA. Feather-grass. 



S. avenucea : leaves setaceous ; panicle spreading. 



somewhat secund ; branches mostly by pairs, a 



little divided ; calyx as long as the seed ; awn 



naked. 

 HAB. Sandy woods. June. ii . 2-ft. high ; leaves 



mostly rad. narrow ; cor. stipit. brownish : awn 2 — - 



3 in. long. 



