i-OA* TRIANDRIA. DIGYNIA. 113 



obtuse, lacerate. Panicle 6—8 inches Ions, at first pyramidal ; 

 branches virgate, at leni^ih much spreading, pendulous at 

 the extremities. S/iikelcts about 2 lines long ; sides very con- 

 vex. Calyx much shorter than the florets, lanceolate, acute, 

 without nerves, scarious on the margin ; interior glume snialler. 

 Interior valve of the corolla ovate, disiincily nerved, naked; 

 margins scarious ; superior valve obovate, ma-'gined, not cili- 

 ate, bifid at the apex. Sramens always 2 ; anthers short, purple. 

 5^y/e« very short ; s/Z^-was purple. 5ferf oblong, brown. 

 Mab. On the margins of swamps. Near Greenwich, on the 

 Island of New-York. In the cedar swamp near New-Durham, 

 New-Jersey. Phillipstown, in the Highlands of New-York. 

 Dr. BarratC. Williamstown, IVIubsachusetts. Denv e y. 

 In the vicinity of Boston. Bi^elow. Near Philadelphia* 

 jYutiall. July — August. 



17. ?. capillaris L. : panicle very large, loose, ex];iand- 

 ing, capillary ; spikelets 3-flowered, ovate, acute ; florets 

 free ; culm branched at the base ; leaves hairy. Sp. pi. 100. 

 Willd. Spec. 1. p. 394. M i c h. Fl. I. p. G7. Parsh Fl. 

 L p. 79. M u h L Gram. p. 144. Elliott Sk, 1. p. 156. 

 Roem. ^ Schult. II. p. 552. 



Root annual. Cuhn a foot or more in height, a little compressedj 

 cespitose and much branched at the base. Leaves linear, flat, 

 finely nerved. Sheaths with very long hairs on the margin and 

 about the throat. Sti/iule very short, fringed with hairs. Panicle 

 § — 12 inches long, much branched, pyramidal; branches 2 — 3 

 at each joint, not hairy at the base. S/iikeiets on long capillary 

 peduncles. Glumes unequal, lanceolate, acute, scabrous on 

 the keel. Corolla ovale, acuminate; inferior valve 3-nerved, 

 scabrous on the keel ; superior valve shorter, ciliate on tha 

 margin. Seed short-ovate, obtuse or emarginate. 



Hab. In sandy fields and on dry rocky hills; not common. 

 August. 



IG. P. hirsuta M i c h. : culm erect, compressed, simple ; 

 sheaths hairy ; panicle very large, capillary ; branches ex- 

 panding, at lermth reflected, bearded m the axils 5 spiketets 

 oblong, aho.it 5-flowered ; corolla ciliate on the margin. 

 M i c h. FL I. p. 60. Pursh Fl. \. p. 80. M u h l. Gram. 



45. Elliott Sk. 1. p. 157. Rocrri. ^- Schult. II. 



p. 552. 



Root perennial. Culm a fijot and a half high, straight and erect, 

 thick, cespitose at tlie base ; joints few. Leaves longer than 

 the culm, 2 — 3 lines broad, strongly nerved, with a few long 

 hairs towards the base. Sheaths striate ; the lower ones hairy, 

 bearded at the throat. Panicle a foot long, very much branched;, 

 reflected and divaricate with age ; tlie larger branches swelled 

 at the bas^. S/iikelets purplish; floxets free. Cuhjx acute, 



