AVKNK.K. 879 



liaira at the basi*. 6 mm. loiij;, tlio iiwn (J-S imn. loiijr. 8trtrtiii<j two- 

 tliinls till' way fnnii tlio l»aso; palea 5 mm. lonj;; upper lloret 1 mm. 

 shorter, the awn als«) shorter. 



Wasliinjjton (Mt. Stuart, altitude 7000-8000 feet). SamilwriJ 

 and l.tihiij. 



11. T. montanum Vase.v, Hull. Torr. Club. i;5: 118(1SS»1). 



Culms 40 70 em. hij;h. smoDtli. Leaves of sterile shoots ITi-'^o 

 cm. Ions;, the upper sometimes e(pialliiiu[ the pauiele. slii^htly 

 seahrous. raiii«-le 10-15 em. lonj;, loose. 0[>eu. rays in clusters of 

 thn-i" to live. 1-4 cm. louir, llower-bearing nearly to the base. 

 SpikcU'ts 'i-llowere*! besides a hairy pedicel !.."» mm. Ions;, lirst 

 Illume lam-eolate. 4 mm. loni;, 1-norved; second ovate-lanceolate, 

 (>vt'r ."» mm. I«>nir. ■.>-uerved: lloral ,i,dume liiu>ar-lani'eolatc. bearii\{:f 

 short hairs at the base, over 5 mm. loui;:. obscurely a-nervcd, tcr- 

 iuinatin>; in two sleutler seta', the awn diverjjinjx when dry, 3-5 mm. 

 lonir. startini; two-thirds of the distance from the base; palea linear, 

 4.') mm. loui;. •^-tt)othc»l. 



This has been mistaken for an opcn-[)anicled form of T. xuh- 

 spi I'll him. 



Colorado. I'liseif for V. S. Dept. Agricul. 



Coloratlo to \ew Mexico. 



I-,'. T. cernuum Trin. Mem. Acad. St. IVtcrsb. (VI) 1 : 61 (1831). 

 Art'iiii irnma Kunth, Knum. PI. 1:306 (1S33). 



Culms slcn«ler, 30-!U) cm. high, blades Hat, I't-'^O cm. loni?. 

 Sheaths snu)oth or pubescent; blades tlat. Ift-'^Dcm. lon<j, 5-10 mm. 

 wide. I'anicle very open, sleiuler, luiddiuj;, l*-2-"J4 cm. lonj;. 

 rays in distant clusters, capillary. S{)ikclets '->-3- (rarely 4-) llow- 

 ered. <5 mm. lonjj or l«»n,irer, rachilla bristly hairy; empty j,dunu's 

 much shorter than the llorets, lirst laiu'eolato-subulalc, l-iu'rved, 

 about ;> mm. lonir. second oval, abruptly pointed, over 4 mm. long: 

 lloral glume lirni. scabrous, with a few liairs at thvi base, oval- 

 lanceolate, obscurely o-nerved, bearing a bent awn once or twice ita 

 length; palea short with two hispid keels. Grain 3 mm. long witii 

 a spongy hairy ajH?x. 



Washington, Luke, SnLtdorf for U. S. Dept. Agricul. 425, 

 Sanilficnf. 



