ALOPECURUs. TRIANDRTA. DTGVNTA. 97 



Roem. £s? Schult. Gen. 209. P. &; Beaiiv.t.W, 

 f. 5. 6. Tnn. Jgrost. 14. Panicie aj'iked, cylindric. 



Fox-tail grass, 



1. A. prniensis L. : c:ilnn erect, smooth; spike cylindric, 

 obtuse. Idbed ;. calyx ci'iule, sornewh-Ht villo«ie, co.inate below 

 the middle ; corolla as loiii: as the calyx. IV i lid. E?twn. h, 

 BtroL \. p. 5. S-iec. I. p. hbl . Engl BoL t. 759. Pvrsh 

 Fl. I. p. Go. M uhl. Gram. p. 80. Roem, fy Schul t, 

 l\, p. 26J. 



Root fibrous, perennial. Culm simple, 2 — 4 feet hic^h, terete, 

 sniootn. L'.aves flat and smooth. Siifiult ovate. S/iike about 

 an incli and a half li>ng. Flowers crowded on short brunciies. 

 Calyx acute, lower part villose and ciliate. Corolla si-nietinies 

 a little shorter than the calyx, obliquely truncate. Jivn twisted, 

 scabrous, twice the length of the flower. Stamens 3 ; anthers 

 yellow. Styles cotinate. 



Hab. In fields and pastures. June — July. Doubtless intro- 

 duced from Europe. 



2. A. geniculaWs L.: culm ascending, geniculate ; spike 

 cylindrical ; glumes a little connate al the base, hairy on the 

 back and margin ; corolla truncate ; styles free. S chr ad, 

 Fl. Germ. 1. p. 173. IV it Id. Spec, I. p. 358. Smith 

 Ft. Brit. I. p. 74. Evg. Bat. t. 12o0. R oem.^- Schult. 

 n.p.273. JliwA/. Gram. p. 81. E I lio 1 1 Sk, \. ^s, \{\, 

 A. carolinianus Walt. Car, p. 74. 



Root perennial, creeping. Culm a foot and a half high, a little 

 branching, geniculate and rooting below, terete, smof?th. 

 Leaves linear-lanceolate, 2 — 3 inches long, smooth, flat, vtry 

 acute. Sheaths a little inflated, shorter than the joints. Stipule 

 elongated, obtuse, entire. Sliike an inch and a haif or two 

 inches long. Calyx ovate ; glumes very villose on the mar- 

 gins, distinctly fringed on the keel. Corolla as long as the 

 calyx, smooth, truncated a Utile obliquely. Awn arising from 

 near the base of the valve, nearly as long again as tiie curol'a, 

 geniculate. Stamens 3; an^Afrs oblong, paie ycliow. Siylea 

 a little connate at tiie base; atigrnas much exscrt, simply plu- 

 mose. JVeclaries collateral, lanceolate, very minute. 



Hab. In wet meadows and on the margins of ponds. Near 

 New- York ; rare. Fish kill, Sec. June. 



jS. arisinlalus* : awn scarcely exserted. A. arislulafus 

 Mich, Fl. I. p. 43. A. suharistatus P e r s. Si/n. I. p. 80. 

 Purs /i F/. I. p. 6G. J^utt. Gen. \. ]). 52. R o t ,n. &r 

 Schult. II. p. 273. 

 Hab. Near Boston. Big-elow. 



I have not been able to discover any d'fi'erence between the 

 A. geniculatus and the A. aristulatus Mich., except that in 

 the latter the awns are shorter, and the flowers a little less 

 13 



