jjiLiUM. TRIANDRIA. DlGYNIA. 79 



jninate, loose, sometimes obliquely truncate, without nerves; 

 inferior valve a little longer. Corolla as long as the calyx ; 

 valves equal, acute, nerveless, densely covered with white ap- 

 pressed hairs ; the inferior emarginate ; superior entire at the 

 tip. Stamens 3; anthers forked, yellow, included ? Style 1, 

 deeply 2-parted ; stigmas 2, plumose, exsert, white. Seed ob- 

 long, acute. JVeciaries lanceolate, shorter than the germen, 

 ciliate. 

 Hab. On rocky hills. Deerfield, Massachusetts. Co o ley 

 and Hitchcock. In woods near Boston. B ig e loiv. 

 Near Schenectady, New-York. Beck. May. 



Nearly allied to Milium No. 3. (anonymos.) Muh I. Gram. 

 p. 78, but differs in having a hairy, not a smooth corolla. 

 Sfi renffel, to whom I sent specimens, thinks it is M. rigidi' 

 folium Roem. ist Schult. II. p. 319, a native ol St. Do- 

 mingo, but it appears to me to be a distinct species. It should, 

 perhaps, be made a new genus between Milium and Ory- 

 ■zopsis. 



4. PIPTATHERUM. Beauv, 



Calyx membranaceous, longer than the corolla. Co- 

 rolla cartilaginous, elliptical; inferior valve awned at 

 the tip. Nectaries ovate, entire. Seed coated. P. de 

 Beauv. Agrost. t. V. f. 10, II. Ro em. ^ Sc h ulL 

 Gen. 224. Urachne Tr in. Agrost. 30. Milii 

 sfip. L i n. Flowers panicled. 



P. nigrum*: panicle simple ; flowers racemose, ovafe- 

 lanceolate; corolla black, hairy; awn as long ai.'ain as the 

 valves. OaYzorsis melanocarpa Muhl. Gram. p. l\i. Cat. 

 p. 10. excl. syn. Mich. xMilium racemosum Smith in 

 it e e s' Cycloped. 



Root perennial. Culm 2 — 3 feet high, erect, simple, leafy, 

 Z,eaves 8 — 12 inches long, nearly half an inch wide, pubescent 

 beneath, smooth above, finely attenuated. Sheaths striate, 

 smooth, closed. Ntifiule a bearded ring. Panicle terminal, 

 erect, flcxuous, sparingly branched ; lower branches in pairs, 

 the upper ones simple. Flowers all pedicellate, disposed in a 

 racemose manner on the brandies ; pedicels clavate. Glumes 

 of the calyx acuminate, mucronate, membranaceous, smooth ; 

 the inferior 7-nerved ; the superior 5-nerved. Corolla shining 

 and of a deep brown or black colour when the seed is ripe ; 

 inferior valve embracing the superior, with a straight, scabrous 

 awn at the tip nearly an inch in length ; the other valve acute, 

 and of equal length. Stamens 3 ; anthers linear, yellow. 

 Styles 2 ; stigmas simply plumose. Germen bicuspidate. 

 Seed oblong, black. JVectaries ovate-lanceolate, entire, very 

 distinct. 

 Hab. In rocky mountainous situations. Williamstown, Massa- 



