AGR0ST4S. TRIANDRIA. DIGYNIA. 85 



1. A. stricta Willd.: panicle elongated, straight; calyx 

 equal; corolla smaller than the calyx; valves unequal, with 

 an awn at the base of the outer one, longer than the flower. 

 Willd. Spec. I. p. 366. Pursh Fl. 1. p. 63. Muhl. 

 Gram. p. 65. Trichodium strictuni Roem, <$/• Schult, 

 II. p. 281. 



Cuhn erect, smooth, with black nodes. Leaves linear-lanceolate, 

 scabrous on the margin, Sti/iuie acute or retuse, cleft, white. 

 S/ieaths striate. Branches of the fianicle about 5 ; divisions 

 flexuous, scabrous, erect. Calyx equal ; glumes lanceolate, 

 scabrous on the keel. Corolla 2-valved, with a geniculate awn 

 at the base of the superior valve twice as long as the flower. 

 Stamens 3. Muhl. 



Hab. In New-England. Muhl en berg: 



I have never seen a specimen of this plant. The A. stricta 

 was introduced into the New-York Catalogue by mistake. It is 

 remarkable that Ro emer is" Sc hu lies should have placed 

 this grass in the genus Trichodium, although IViLld enow 

 expressly mentions that the corolla has 2 valves : perhaps the 

 mistake was made in consequence of Wi II d enow' s remark 

 that it was allied to Agrostis rubra^ which is a genuine species 

 of Trichodium. They have, however, also referred to this 

 genus the A. setacea Li n.., Jlavescens Host, and rufiestris 

 Wi 1 1 deno w, all of which have 2 valves to the corolla, 

 Mu h len b erg (I. c.) remarks that the A. stricta is allied to 

 the A. canina, and adds with a mark of doubt the A. setacea of 

 Curtis as a synonym. 



2. A. vulgaris Sm ith: branches of the panicle smooth- 

 jsh, at length divaricate ; outer valve of the corolla 3-nerved; 

 stipule very short and truncate. S c hr ad. Fl. Germ. 1, 

 p. 206. Smith F I. Brit. I. p. 75. Hook. Fl. Scot. I. 

 p. 25. Pursh Fl.]. ip. 63. M u h I. Gram. Tp. 70. Big. 

 Bost. p. 21, R em. S^ Schult. \\. p. 350. A. hispida 

 Willd. Spec. I. p. 370. 



Root creeping. Culm ascending, a foot or a foot and a half high. 

 Leaves flat, pale-green, scabrous. Sheaths smooth and striate. 

 Branches oi \.he fianicle verticillate, capillary. Flowers ovate, 

 purplish. Glumes of the calyx nearly equal, smooth except 

 on the back. Corolla a little smaller than the calyx ; valves 

 a little unequal, thin and membranaceous; the inferior one 

 slightly S-toothed. 



Hab. In meadows and pastures. June — August. It is gene- 

 rally called Red-tofi. Introduced. 



3. A. alba L.: branches of the panicle hispid, spread- 

 ing, lax ; outer valve of the corolla 5-nerved, stipule oblong. 

 Schrud. 1. c. p. 209. Hook. 1. c. p. 25. Willd. 6p''c. 

 I. p. 371. Pursh Fl. I. p. 64. Muhl. Gram. p. 69. 

 Elliott Sk, I. p. 137. Big. Bost. p. 22. Roem. ^ 



