CHLORIDES. 423 



long; the lateral seta? as long, the middle one twice as long, or in 

 the terminal florets the lateral setfe 0, and the terminal seta 4 mm. 

 long. Anthers orange-red or yellow. Very variable and widely 

 distributed. 



Pennsylvania, Bnrk for Scribner 3440; Michigan, Cooki/, 

 Whcchr 90; Illinois, Bebh for Clark; Texas, Hull 772, Drummond 

 354 ; Arizona, Roihrork 284, 586, 677, Lcmmon 431 ; Mexico, Palmer 

 206, 1503, Pringlc 408. 



Southern Xew York, Pennsylvania to AV'isconsin, British America, 

 Texas, Arizona, Mexico, South America. 



Often the most common species in Chihuahua, Mexico, 

 scattered over mountains, liills, and plains. Unlike B. oligo- 

 f<fachi/(i, it grows in strict bunches, is more leafy than that species, 

 but of similar quality. 



15. B. bromoides (II. B. K.) Lag. Gen. et Sp. Nov. 5 (1816). 

 Dinehra bromoides II. B. K. Nov. Gen. et Sp. 1: 172, /. 51 (1815). 

 Ktitriana bromoides Kunth, Hev. (Jram. 1:95 (1829), rot Trin. 

 lleterosteca juncifoUa Desv. Nouv. Bull. Soc. Philom. 3 : 188 

 (1810). 



Under the synonyms of the genus may be found large numbers 

 of other names. 



An erect tufted perennial, 30-60 cm. high. Sheaths half to 

 two-thirds as long as the internodes; ligule a ciliate ring; blades 

 sparsely hairy, 4-13 cm. long, 3-3 mm. wide, the upper shorter. 

 Spikes 5-11 in number, 1-3.5 cm, long, ascending, horizontal or 

 drooping on velvety pedicels, the latter 3 mm. long, borne on an 

 axis 5-13 cm. long. Spikelets 3-6-11 to a spike; empty glumes 

 ovate-lanceolate, 1-nerved, ciliate on the back, first 3.5-4 mm. 

 long, second 5-6.5 mm. long; floral glume of the perfect floret 

 membranous, oval-lanceolate, 5-6 mm. long, central seta about 1 

 mm. long; palea as wide as its glume and as long or longer; floral 

 glume of staminate floret 4.5 mm. long, lateral setfe 3-5 mm. 

 long, the central stouter and reaching higher; rachilla extending 

 above the staminate flower, but bearing no awn or glume. 



S. Watson in Am. Acad. Sci. p. 178, 1883, says: "Somewhat 

 variable in size, habit, and number of spikelets, but the floral 



