638 POACE.E. 



Iowa, Hitchcock; Colorado, Vasey, Cassidy, Jones; Montana, 

 Anderson ^(i; Texas, Nealley; Utah, Jones; New ^lexico, Vasey; 

 Wyoming, Buff urn C 5, (' 40. ('95; New ^[exico, Vasey; Wasliiiig- 

 ton, Sandhery 310, 435,466; Oregon, Howell; Arizona, Jones 4012. 



A native of the western plains from Texas to Montana, much 

 valued for hay. See Vol. I., pp. 93,93. Also found in Europe 

 and Asia. 



5. A. divergens Nees, Stoud. Syn. PI. Gram. 347 (1855). 

 Triticmn strigosum Les. Linnjta, 9:170 (1834). 



A slender dense!v tufted glaucous perennial, 30-80 cm. high. 

 Leaves 3-4 in number, sheaths about the length of the internodes; 

 ligulo very short ; blades narrow, convolute, setaceous, nearly smooth, 

 the upjjcr 4-8 em. long. Spikes 6-14 cm. long, very slender. Spike- 

 lets o-O-flowci'ed, rather distant, first em])ty glume (i mm. long, 

 3-nerved, margins scarious, second 8 nnn. long, 5-nerved, witli the 

 midrib at one side, awnless; floral glume 7-8 mm. long, })lainly 

 5-nerved above, awn stout, diverging or recurved when dry, 

 longer than the floral glume; i)alea about as long as its glume or 

 longer. 



Colorado, Cassidy; New Mexico, Vasey; Montunu, Anderson 

 35, 40; AVyoming, Btiffnm C 94, ('97; Washington, Sandhery 583, 

 Lake; Oregon, Howell, Cusick; California, Parish; Mexico, Pringle 

 1439. 



Kocky Mountains to tlie Pacific. 



G. A. Scribneri Vasey, Bull. Torr. Club, 10: 128 (1883). 



Culms densely tufted, geniculate and decundjent near tlie base, 

 30-00 cm. high, rather slender. The upi)er sheath thrice as long 

 as tlie blade; ligule obsolete; blade 3.5-3.5 cm. long, involute, 

 narrow, rigid. Spikes exserted, 5-7 cm. long, their internodes 4-5 

 mm. long. Sj)ikelets 3-0-flowered; empty glumes 5-7 mm. long, 

 linear-lanceolate, 3-5-nerved, extending into along point, 10-35 

 mm. long; floral glume oblong-lanceolate, the base about 8 mm. 

 long, smooth, 5-uerved, sometimes slightly bidentate, the mid- 

 lurve extended into a strong, spreading or recurved hispid awn; 

 palea equalling the floral glume, acute, margins hispid. The spike 

 resptnlil'S that of A. caninum, but the plant dilTers in its tufted 



