A(im»s'i'ii>i:.K. 'S.M 



0. I'aiiick* lolx'd, nitliiT tlciisc, lo-lti cm. I(»ii;^'. 

 Kpikch'ta l{.r)-4 mm. Ion;;, iiwn stnii;;lit. . . 'H) 



1. C. deachampsioidei Triii. Ir. (iruin. /. 'A.'A't-i (is:u\). Ih- 

 livu.fin drxrlitdiipxiitiih's N'uscv. Cut. (Jr. V. S. 'id (IS85). 



All iTi'ct slender donscly tuCteil pereiiniiil. I."i ;{*> cm. Iiiirli. 

 Slieatlis cldSi'. ludf uk loii^' us tlic iiileniodes; li;,nd«' acute, deciir- 

 rent. ;{ mm. lon^; liladcn involute, setueeoiis. tliose helow (i-lOem. 

 long, tliose of the culm 2 in miml)er. ','-4 cm. loii;r. I'unide tliiu. 

 erect, oblong or nanowly pyramidal, 4-7 em. long, rays in .sets of 

 l-:j. bearing l-I) spikelets near the tips. Spikelets blackish purple, 

 elliptii'ul, acute, aliout :{.') mm. long, tlio bent awn projecting l-'-i 

 mm. Em))ty glumes eipial. ovatedanccolate, obscurely nerved; 

 lloral glume a little sliorter, 4-toothed, the awn attached near the 

 base, tb(! hairs short, in two bunches, the hairy rudiment 1.5-'^ 

 mm. long, aside from its hairs; i)alea a little shorter than its 

 glume. 



California, lireirer from the summit of Carson Puss, at an alti- 

 tude of SODO feet. 



In several parts of California at high altitudes. 



'Z. C. Howellii Vasey, Coult. Jiot. (Jaz. G: 'i:i (1881). Dei/oi.n',/ 

 HowelUi N'asey, Agric. Grasses U. S. To, t. (il (1884). 



A slender erect smooth densely tufted perennial, ;50-5() cm. 

 high. Ligule 3 mm. long; blades involute-setaceous, the lower as 

 long as tile culms, the others about 3 in number, lO-^'O cm. long, 

 the upper often exceeding the iianicle. Panicle scarcely exserted. 

 open, thin, pyramidal, 0-12 cm. long; rays slender, mostly in lives, 

 llower-bearing above the miildle. Spikelets whitish green, tinged 

 with purple, lanceolate, 0-7 mm. long, bearing a twisted and bi'ut 

 awn projecting 0-10 mm. Empty glumes sube(iual, niembraiious. 

 ellii)tical-lanceolate, first 1-nerved, second a little shorter. 3-nervc(|; 

 iloral glume about 5 mm. long, terminating in 2-4 mucronate 

 teeth, the awn inserted one-third the way from the base to the 

 ai)ex; palea slender, but little shorter than its glume, bidentate, 

 basal hairs over half the length of the floret, hairv rudiment about 

 1.5 mm. long. 



