13& TRTANDRIA^ DIGYNIA. ELTufu?. 



5. E. villosus Muhl.: spike a little nodding at the ex- 

 tremity, patulous; rachis and florets hispid-pilose; spike- 

 lets geminate, 2 — 3-flovvered; glumes linear, pilos'^.-ciiiate, 

 2-nerved, shorter than the florets. W i 1 1 d, Enum. h. BeroL 



I. p. 131. MuhL Gram. p. 175. Pursh Fl. 1. p. 89. 

 Roem. c^ Schull. 11. p. 776. 



Boot fibrous, perennial. Culm 2 — 3 feet high. Leaves 8 — lO 

 inches lon{j,-4 — 5 lines broadj. smooth. Lower sheaths strigose- 

 hirsule ; the upper ones often smooth. Sjiike 3 inches long» 

 at first erect, but at length incurved at the extremity, loose» 

 Sfiikelets generaily S-flowered. Glumes very narrow, ciliate 

 and pilose', rarely naked. Inferior valve of the corolla strigose, 

 wuh a straight scabrous bristle longer than that of the glumes. 



Hab. On dry hills along the banks of rivers. Hobokeny New- 

 Jersey, Sec. July. 



4. E. Hystrix L, : spike erect ; spikelets diverging ; 

 calyx 0. Sp, pi. ]2i. JVt 1 1 d. Spec. I. p. ^71, Elliott 

 Sk. I. p. 18K Muhl. Gram. p. 178. Roem. ^ Schult. 



II. p. 779. 



Root fibrous, perennial. Culm about 3 feet high. Leaves broad- 

 linear, flat, often glaucous. Scifiule very short. Sfiike 6 inches 

 long, Sfiikelets generally 3 at each joint of the flexuous 

 rachis, 3-fiowered, at length spreading almost horizontally. 

 Calyx generally wanting ; rarely of I or 2 subulate glumes ,• 

 sometimes its place is supplied by 2 callous rudiments. Inferior 

 valve of the corolla hairy, (sometimes naked,) terminating in a 

 scabrous bristle 2 — 4 times its length ; superior valve ciliate 

 on the margin. 



Hab. On rocky hills. Hoboken, New-Jersey. In the High- 

 lands of New- York. Williamstown, Massachusetts. D ew e t/. 

 In Pennsylvania. Mu hlenberg, July. 



This species, from its wanting the calyx, constitutes the 

 genus AsPRELLA oi Cavanilles, (Gymnostichum Schreb.) ; 

 but Muhlenberg remarks that there is sometimes a 1- or 

 2-leaved calyx as long as the florets, and this I have observed 

 in specimens collected by Dr. E. Jame s on the Ohio. The 

 callous rudiments, in the place of the glumes, are not at all un- 

 common. 



46. MELICA. L. 



Calyx 2 — 4-flowered, loose, membranaceous. Flo- 

 rets as long as the glumes ; one or more of the superior 

 ones abortive and incomplete. Corolla unarmed, co- 

 riaceo-membranaceous. Nectaries connate. Seed free. 

 Gen. pi, 113. Nutt. Gen. I. p. 63. Juss. p. 31. 

 Roem, ^ SchitlU Gen. 290. P, de Beauv. t. XIV. 



