No. 15. 

 STIPA STILLMANl lioh.nd. I'rnc Ciil. A.;ul. iv. 169. 



Plant iicrciinial, tufted from thick bulbous base or chistcr.s of almost woody tubers 

 root-fibers tomentose. 



Culmx erect, terete, {glaucous, smooth, 3 to ."» feet liijili, uodes piibesceut. 



Xen ?■<■/>• from the base and of sterile shoots uumcrous; sheaths rather loose, open 

 above, striate, smooth, ciliate at throat; blades flat or involute, slender-iioiuted, smooth 

 below, hisjiid above, li to .'5 lines wide, 12 to IS inches Ion};'. Leaves of culm 4 or 3: sheaths 

 much shorter than internodes; blades simihir to those of radical leaves or the ujijier 

 ones shorter; ligule thick, searious, velvety-frinfj;ed, ^ line louj;. 



Inflorescence an ere(;t, narrow panicle interrupted below, dense above, <i to 10 

 inches long; branches in fives, threes, and twos, unequal in fuscous-juibescent tufts 

 on the rachis. 1 inch huij; or less, 2- to .j-tlowered. 



>S])ikclctg pedicellate, lanceolate, 1-flowered, 7 to 8 liiii's hjny; empty {flumes nearly 

 equal, lanceolate, subulate-pointed, membranaceous silvery-white, minutely ai)presse«l- 

 l)ubescent, 7 to S lin»'s long; first glume ."{-nerved; second glume o-nerved at base: all 

 e.\cei)t the excurrent, scabrous, middle nerve in each, evanescent; stipe ubconical, 

 obtuse, bearded above, ^ line long; floret spindle-shaped, tapering to the apex, 4 lines 

 long, A to 5 line thick; floral glume lanceolate, with two slender ciliati' teeth aline 

 long at the ajiex, pubescent, ^cry obscurely .")-nerved; awn whitish, slightly pubescent 

 and twisted below, bent at the middle, 1 inch long; palet lanceolate, cleft at the apex, 

 boat-shapecl or wrapped comi)letely around the stamens, slightly pubescent on the 

 back above, I'-neived, .'5i to 4 lines long; stamens L'i lines long, I'-horned at apex, but 

 not bearded; lodicules lanceolate, aeute, half ;i line long. 



Plate XV; a, spikelet enlarged about twice. 



Collected in 1870 iu the Sierra Nevada Mountains by H. N. Bolauder; not reported 

 since. 



