256 
Fi6. 562. POA LUCIDA Vasey, Contr. U.S, Nat. Herb. 1: 27 Ne 
SPEAR-GRASS.—A slender, tufted perennial 4.5-6 dm. (142.20) bigh 
leaves ax panicles — 4’-6’) long. Rad 
em. (5-7) long, 2-4 Y -2") wide, th of e culm shorter; ras 
mm. (2^) long, d ik Spikelets (a) 6-8 mm. (3”-4”) long, 9-10 
empty glumes (a) abruptly acute or obtuse, u See 
mooth, slightly compressed, scarious e margins; 
ing glumes (a) 4 mm, (2”) long and slightly pubescent on the keel 
erves — and minutely seab s, 5-nerved. 
nm the glume,— es, moist brooksides, anra ete., 
Dry, rocky plac si 
300 m.; mountains of Sas Wyoming, Montana, and 
July to September, 
