376 BOTANY, 



and axils naked, the branchlets and long capillary pedicels very scabrous : 

 spikelets less than 1" long, frequently 2-flowered, the glumes slightly une- 

 qual, hispid upon the back, acute, a third shorter than the nearly equal palets ; 

 lower palet submucronate, the upper obtuse.— The specimens accord very 

 well with the description of the Chilian plant, and also much resemble forms 

 of Eragrostris capillaris. Mono Lake, California, (6095 Bolander ;) Colorado, 

 (641 Hall & Harbour, 630 Vasey ;) also 571 and 57P Torrey, from Western 

 Nevada. On alkaline soils in Carson, Unionville and Ruby Valleys, Nevada ; 

 4-6,000 feet altitude ; August-October. (1,277.) 



ViLFA EAMULOSA, HBK. Steud. Gram. 158. {Sporobolus, Kth.) Root 

 annual, fibrous; culms very slender, branching from the base, 3-10' high; 

 sheaths usually exceeding the internodes and glabrous or slightly hairy ; leaves 

 flat or convolute, 1-2' long, |-1" wide, recurved, roughish ; panicle elon. 

 gated, often sheathed at base, very loose and spreading, with scattered branch- 

 lets ; spikelets scarcely J" long, obtusish, on capillary pedicels ; glumes nearly 

 equal, minutely hairy upon the margin or naked ; palets obtuse, nearly twice 

 longer. — Mono Lake, California, (6096 Bolander;) Colorado, (643 Hall & 

 Harbour.) Banks of the Truckee River ; Nevada ; 4,000 feet altitude ; 

 July. (1,278.) 



ViLFA DEPAUPEBATA, Torr. Hook. Fl. Bor.-Amer. 2. 257, t. 236. Root 

 perennial, creeping ; culms ascending, appressed-branched, slender, often ge- 

 niculate, glabrous, striate, rather rigid, J-2° long; leaves 1-3' long, narrow^ 

 and usually convolute, spreading or recurved ; panicle very slender and con- 

 tracted, 1-3' long, compound or often nearly simple ; spikelets small ; glumes 

 unequal, ovate, obtuse or acutish, membranous, two-thirds the* length of the 

 acute lower palet, which is more or less obscurely 3-nerved. — Resembling 

 V. cuspidata and scarcely differing except in the shorter obtuse glumes of the 

 rather smaller flowers. Lower palet a little more than 1" long, glabrous or 

 slightly scabrous on the midnerve, the upper one obtuse or erose at the sum- 

 mit, not seen bifid as described and figured by Hooker. From Western 

 Texas and New Mexico to Colorado and the Saskatchewan ; California. 

 Ruby and Huntington Valleys, Nevada, abundant and forming a dense turf; 

 also in Washoe and Carson Valleys, (563 and 566 Torrey ;) 4-6,000 feet alti- 

 tude; July, August. (1,279.) 



Var. FiLiFOKMis, Thurber, Ms. Culms low and very slender, 2-8' 

 high ; panicle about 1' long and nearly simple ; glumes shorter, less than J" 



