Vol.11 Hdll . — Bofmiical Survey of San Jacinto Mountain. 61 



Sporobolus depauperatus (Torr.) Scrihn., Bull. Torr. Club, 

 ix. 103 (1882). Vilfa depauperafa Torr., of Bot. Calif. 



Common and well distribnted l^etween the 5000 and 9200-foot 

 contours. (Nos. 2341, 2428, 2477, 2545.) 



Sporobolus gracillimus (Tbnrb.) Scrihn., Bull. Torr. Club ix. 



103 (1882). Vilfa gracillima Thurb., of Bot. Calif. 



This species requires a moister soil than does the last and it 

 is probably for this reason that it is less common on the moun- 

 tain, the only collections being made in damp meadows and 

 around springs in Strawberry and Tahquitz valleys. (Nos. 

 2290, 2359.) 



Stipa Californica Merrill & Davy, sp. nov. 



A rather stout erect c^spitose glabrous perennial, 7 to 10 

 dm. high, with plane or involute leaves and elongated contracted 

 panicles about 3 dm. in length: culms and nodes glabrous; 

 sheaths shorter than the internodes, glabrous except on the 

 somewhat ciliate margins above; ligule a minute lacerate ring 

 0.5 mm. long, with a prominent fringe of hairs on the apparently 

 auriculate margins, 1.5 mm. long; blades firm, plane or becoming 

 involute in drying, 2 to 4 mm. wide, 1 to 1.5 dm. long, glabrous 

 beneath, striate and scabrous above: panicles pale, interrupted, 

 the common axis glabrous, branches solitary or in twos or threes 

 at each node, appressed, flower-bearing throughout, the lower 

 ones sometimes 1 dm. long: empty glumes glabrous, hyaline, 

 3-nerved, about 11 mm. long, sub-equal, with a very slender 

 acuminate apex; flowering glumes about 5 mm. long, excluding 

 the very acute pilose callus which is 1 mm. long, lanceolate, 

 sparingly hairy throughout with appressed stiff white hairs which 

 increase in length toward the apex of the glume: awn slender, 

 2.5 to 3 cm. long, geniculate, twisted and sparingly pilose below 

 the geniculation with appressed or ascending hairs, scabrous 

 above. 



Type specimen collected by H. M. Hall, no. 2556, north side 

 Fullers Ridge, San Jacinto Mountains, Southern California, July, 

 1901, 2100 meters (7000 ft.) alt. 



Other Calif ornian specimens examined: 



Soda Springs, Sierra Nevada, Aug. 7, 1901 (P. B. Kennedy 



