724 CALIFORNIA ACADEMY OF SCIENCES. 



nerved narrowly elliptical, acute, somewhat keeled, hya- 

 line, 2" long, nearly glabrous; upper glume 2|" long, el- 

 liptical, barely acute, rounded, nearly smooth; flowering 

 glume with two evident marginal nerves, two very faint 

 additional inner ones, and three others which are visible 

 only at the top, the midnerve being obsolete except at the 

 very tip, oblong- lanceolate, with a short- acuminate tip, 

 scabrous above and hyaline, but on the sides hyaline bor- 

 der very narrow, 3" long, rounded; palet concave in 

 center, with two green nerves, acute, nearly linear, equal- 

 ing the flowering glume, hyaline; rachis of the spikelet 

 with joints about i" apart, pubescent; spikelets somewhat 

 flattened. 



No. 5671. July 25, 1894, Mt. Ellen, Henry Mts., 

 Utah, 10,000° alt., on open slopes, forming a very con- 

 spicuous and important part of the vegetation. 



Stipe pinetorum. Close to S. Sihii-ica Watson, Bot. 

 Cal. Allied to ,5'. comata. Densely tufted like Bouteloua 

 oligostachya and Aristida ^ur-piirea, perennial, about 1° 

 high, erect; root leaves 2-3' long, filiform -involute, 

 sheaths 6-12" long thickened, brown; ligule obsolete; 

 small wiry stems with about 3 leaves whose sheaths are 

 longer than the internodes, 3-4' long, with a very short 

 filiform blade 1-2' long; panicle linear, 6' long or less, 

 barely exserted; rays 2—3, appressed, the lateral ones al- 

 most none, the central one 3-6" long and 2-3 flowered; 

 lower glume 3-nerved, subulate, tapering into a thread- 

 like tip, 4" long, smooth; upper glume i-nerved and nar- 

 rower and as long, smooth; flowering glume i\" long, 

 linear, pungent at base and sparsely long hairy, hairs 

 denser above forming a tuft 2" long; awn slightly twice- 

 geniculate, 6-9" long, glabrous. 



No. 6o23p. September 8, 1894, Panguitch Lake, 

 Utah, 8400° alt., growing in open places among the pine 

 forests. 



