No. 15. 

 STIPA STILLMANI Boland. Proc. Oal. Acad. iv. 169. 



Plant perennial, tufted from thick bulbous base or clusters of almost woody tubers 

 root-fibers tomentose. 



Culms erect, terete, glaucous, smooth, 3 to 5 feet high, nodes pubescent. 



Leaves from the base and of sterile shoots numerous; sheaths rather loose, open 

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

 below, hispid above, 2 to 3 lines wide, 12 to 18 inches long. Leaves of culm 4 or 5 ; sheaths 

 much shorter than internodes; blades similar to those of radical leaves or the upper 

 ones shorter; ligule thick, scarious, velvety-fringed, £ line long. 



Infloresceyice an erect, narrow panicle interrupted below, dense above, to 10 

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

 on the rachis, 1 inch long or less, 2- to 5-flowered. 



Spikelets pedicellate, lanceolate, 1-flowered, 7 to 8 lines long; empty glumes nearly 

 equal, lanceolate, subulate-pointed, membranaceous silvery- white, minutely appressed- 

 pubescent, 7 to 8 lines long; first glume 3-nerved; second glume 5-nerved at base; all 

 except the excurrent, scabrous, middle nerve in each, evanescent; stipe obconical, 

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

 long, £ to § line thick; floral glume lanceolate, with two slender ciliate teeth aline 

 long at the apex, pubescent, very obscurely 5-nerved ; awn whitish, slightly pubescent 

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

 boat-shaped or wrapped completely around the stamens, slightly pubescent on the 

 back above, 2-nerved, 3 J to 4 lines long; stamens 2£ lines long, 2-horned at apex, but 

 not bearded; lodicules lanceolate, acute, half a line long. 



Plate XV; a, spikelet enlarged about twice. 



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

 since. 



