252 
l 
; 
: 
j 
i 
* 
: 
) 
m 1 
Fig NI Vasey, Contr. U. S. Nat. Herb. 1: 115 0 
PATT TERSON' " BLUE. GRASS.—A low, densely-tufted perennis $ obo 
(4’-6’) high, with numerous basal leaves, 4-6 cm. (1-27) long ist 
densely-flowered panicles. Sheaths loose; lent blades flat OF ^ 
„ 
empty glumes (a) acute, nearly as long as the gm be nen 
glumes (b) 4 mm. (2) long, purplish, acute, pubescent on the fourths 3$ 
and keel oci the middle, but not webbed. Palea a three 
the glume, pubescent in the keels.—High mountains of Colorado. 
