CHLORIDE.E. 423 



long; the lateral setfe as long, the middle one twice as long, or in 

 the terminal florets the lateral seti^ 0, and the terminal seta 4 mm. 

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

 distributed. 



Pennsylvania, Biirk for Scribner 3440; Michigan, CooJey, 

 Wheeler 90; Illinois, Behb for Clark; Texas, Hall 772, Dnimmond 

 354; Arizona, Rothrock 284, 586, 677, Lemmon 431; Mexico, Palmer 

 206, 1503, Pringle 408. 



Southern New York, Pennsylvania to Wisconsin, British America, 

 Texas, Arizona, Mexico, South America. 



Often the most common sj^ecies in Chihuahua, Mexico, 

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

 stachya, it grows in strict bunches, is more leafy than that species, 

 but of similar quality. 



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

 Dinehra bromoides II. B. K. Xov. Gen. et Sp. I: 172, t. 51 (1815). 

 Eutriana bromoides Kunth, Eev. Gram. 1:95 (1829), not Trin. 

 Heterosteca juncifolia Desv. Xouv. Bull. Soc. Philom. 2 : 188 

 (1810). 



Under the synonyms of tlie genus may be found large numbers 

 of otlier 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, 4-12 cm. long, 2-3 mm. wide, the upper shorter. 

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

 drooping on velvety pedicels, the latter 2 mm. long, borne on an 

 axis 5-12 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 sets 3-5 mm. 

 long, the central stouter and reacliing 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 



