104 GRAMINEAE 



Refs STIPA THURBERIANA Piper, U. S. Dept. Agr. Div. Agrost. Circ. 27: 10. 1900. 8. 

 occidentalis [Thurb. misapplied in] Wilkes, U. S. Expl. Exped. 17: 483. 1874; Thurb. in Wats. 

 Bot. Cal. 2: 285. 1880. 



4. S. occidentalis Thurb. Culms slender, cespitose, 1 to 2 feet high ; sheaths 

 smooth : ligule */ line long ; blades narrow, involute ; panicle narrow, 4 to 8 

 inches long ; glumes 4 to 5 lines long, acuminate, 3-nerved, smooth ; lemma 3 

 lines long, long-pilose, the callus sharp ; awn about 1 inch long, twice-genieu- 

 late, pilose to the second bend or throughout, the first section 3 to 4 lines long. 



Sierra Nevada, from Mt. Shasta (Hitchcock 2938), southward, also in southern 

 Coast Ranges (Mt. Wilson, Abrams 2598) ; north to Washington and east to 



Wyoming. 



Befs. STIPA OCCIDENTALIS Thurb.; Wats. U. S. Geol. Explor. 40th Par. 5: 380. 1871. 

 S. stricta Vasey, Bull. Torr. Club 10: 42. 1883. Var. sparsiflora Vasey, Contr. Nat. Herb. 3: 

 51. 1892, type Bolander 5038 (from Yosemite Park). S. occidentalis Thurb. var. montana 

 Merr. & Davy, Univ. Cal. Publ. Bot. 1: 62. 1902, type Bolandcr 5038. S. oregonensis Scribn. 

 U. S. Dept. Agr. Div. Agrost. Bull. 17: 130. f. 426. 1899. 



5. S- elmeri Piper & Brodie. Culms 2 to 3 feet high, more or less puberu- 

 lent, especially at the nodes ; sheaths pubescent ; ligule very short ; blades flat 

 or becoming involute, pubescent on the upper surface, or those of the innova- 

 tions also on the lower surface; panicle narrow, 6 to 15 inches long, rather 

 loose; glumes 3-nerved, gradually acuminate, thin, papery, 6 to 7 lines long, 

 the first a little the longer; lemma about 3^ lines long, appressed-pubescent, 

 the callus % line long, glabrous at the point; awn distinctly twice-geniculate, 

 first section 4 to 5 lines long, second section somewhat shorter, both plumose, 

 third section about 8 to 10 lines long, scabrous. 



In the mountains, southern California to Washington. 



Loes. Shasta Nat. For., Sampson 171; Upton, Congdon; Long Valley, Lassen Co., Davy; 

 Yosemite Nat. Park, Hitchcock 3247, 3336; Mt. Tallac, Hitchcock 3124; Mill Creek Falls, 

 San Bernardino Co., Parish 2491; San Jaeinto Mts., Hall 2537. 



Eefs. STIPA ELMERI Piper & Brodie, U. S. Dept. Agr. Div. Agrost. Bull. 11: 46. 1898. 

 S. viridula Trin. var. pubescens Vasey, Contr. Nat. Herb. 3: 50. 1892. 



6. S. coronata Thurb. Culms stout, 4 to 6 feet high, as much as i/4 inch thick 

 at base, smooth or pubescent below the nodes ; sheaths smooth, the margin and 

 throat villous; ligule about 1 line long, ciliate-margined ; blades very long, 

 flat, with a slender involute point ; panicle narrow, dense, stout, purplish, 1 to 

 iy 2 f ee t long; glumes gradually acuminate, 3-nerved, smooth except the sca- 

 brous keel of the first, unequal, the first about 10 lines long, the second 1 to 2 

 lines shorter; lemma about 4 lines long, densely villous with long appressed 

 hairs; awn twice-geniculate, first section about 5 lines long, twisted, scabrous 

 but not villous, second section similar but shorter, third section about as long 

 as the other two, straight. 



Coast Ranges, Monterey Co. southward, extending into Lower California. 



Loes. Cone Peak, Monterey Co., Davy 7716; Pico Blanco, Davy 7345; Tassajara Hot 

 Springs, Elmer 3302; San Bernardino Co., Parish 3665; Los Angeles Co., Abrams 623, 1305, 

 Leiberg 3336 ; Eiverside Co., Baker 5282, Hall 2078 ; San Diego Co., Abrams 3360, Orcutt 1068. 



Eefs. STIPA CORONATA Thurb. in Wats. Bot. Cal. 2: 287. 1880; Abrams, Fl. Los Ang. 

 30. 1904. 



7. S. parishii Vasey. Culms stout, 1 to 2 feet high ; sheaths smooth, villous 

 at the throat; ligule short, ciliate; blades firm, flat, with a slender involute 

 point, very scabrous above, about 2 lines wide; panicle 6 to 8 inches long, 

 narrow, dense, purple-tinged; glumes smooth, 3-nerved, long-acuminate, un- 

 equal, the first 7 lines long, the second a line shorter; lemma 3^ lines long, 



