106 



GRAMINEAE 



this species collected by Leiniuon. one in 1882, marked "California," the other 

 in 1884, no. 394, the locality not given. It is doubtful, however, if this species, 

 occurs in California. These specimens are probably from Arizona. 



10. S. stillmanii Boland. Culms stout, 2 to 3 feet high; sheaths smooth, 

 puberulent at the throat and collar ; ligule very short ; blades scattered, folded 

 or involute, firm, the uppermost filiform ; panicle narrow, dense or interrupted 

 at base, the branches short, fascicled; glumes equal, papery, minutely sca- 

 brous, acuminate into a scabrous awn-point, 7 to 8 lines long, the first 3-nerved r 

 the second 5-nerved; lemma 4 1 /^ lines long, short-pilose, the callus short; awn 

 about 1 inch long, once or indistinctly twice-geniculate, scabrous. 



Only known from the collection of Bolander, from Blue Canon, Placer Co. 

 (the type). Three other sheets in the National Herbarium, presumably of the 

 same collection, are labeled from the Sierra Nevada, altitude 4000 feet. 



Refs. STIPA STILLMANII Boland. Proc. Cal. Acad. 4: 169. 1873; Thurb. in Wats. Bot. Cal. 

 2: 287. 1880. 



11. S. calif ornica Merr. & Davy. Culms 2 to 5 feet high, smooth, or the 

 nodes pubescent; sheaths smooth, villous at the throat; ligule very short; 

 blades flat, becoming involute, especially at the long slender point; panicle 

 narrow, usually 1 to 1^> feet long; branches fascicled, short, appressed, or 

 some of the lower as much as 5 inches long; glumes thin and papery, equal, 

 about 5 lines long, smooth, 3-nerved, the lateral nerves rather indistinct ; lemma 

 about 3 lines long, appressed-villous ; awn twice-geniculate, the first section 3 

 to 5 lines long, closely twisted, villous, the second section shorter, 2 to 3 lines 

 long, twisted, villous, the third section 5 to 8 lines long, straight, scabrous only 

 and lighter in color. 



Sierra Nevada from Mt. Shasta to Yosemite, and in the San Jacinto Mts. 



Loes. Mt. Shasta, Hitchcock 2948; Castle Crag, Hitchcock 3064; Shasta Retreat, Heller 

 7936; Donner Lake, Torrey 578; Mt. Tallac, Hitchcock 3121, 3159; Yosemite Nat. Park, 

 Bolander 6109, Hall $ BabcocTc 3336. 



Refs. STIPA CALIFORNICA Merr. & Davy, Univ. Cal. Publ. Bot. 1: 61. 1902, type from the 

 San Jacinto Mts., Hall 2556. This appears to be the species described under S. viridula 

 Trin. by Davy in Jepson, Fl. W. Mid. Cal. 39. 1901, and Abrams, Fl. Los Ang. 31. 1904. 



12. S. vaseyi Scribn. Culms 2 to 3 feet high ; sheaths somewhat hairy at 

 the throat; blades elongated, involute; panicle about 1 foot long, dense, 

 the branches and branchlets numerous, many-flowered ; glumes narrow, acumi- 

 nate, scabrous, the first a little longer, rather strongly 5 to 7-uerved, 5 lines long; 

 lemma about 3 lines long, appressed-pilose, the callus short, pilose ; awn twice- 

 geniculate, about 1 inch long, minutely puberulent. 



Texas to Colorado and Arizona, south into Mexico. There is but one specimen 

 of this from California (San Nicholas Island, Trask}, consisting of a panicle and 

 one leaf, which differs from the type from Texas, in having a longer awn and a 

 more distinctly nerved glume. 



Eefs. STIPA VASEYI Scribn. U. S. Dept. Agr. Div. Agrost.- Bull. 11 : 46. 1898. S. viridula 

 Trin. var. robusta Vasey, Contr. Nat. Herb. 3 : 50. 1892. 



13. S. lemmoni Scribn. Culms 2 to 3 feet high, sometimes pubescent below 

 the nodes ; sheaths smooth ; ligule about ^2 li ne l n g ; blades usually flat, 

 pubescent on upper surface; panicle narrow, the branches 1 to 2 inches long, 

 appressed; glumes nearly equal, rather broad, scarious, acuminate, 3 to 5- 

 nerved, 6 lines long; lemma 3!/2 lines long, rather thinly appressed-pilose, the 

 callus short; awn about 1 inch long, twice-geniculate, appressed-pilose to the 

 second bend. 



