188 GRAMINEAE 



2. S. jubatum J. G. Smith. Culms erect, 1 to 2 feet high, rarely taller; 

 sheaths smooth, scabrous or villous-pubescent ; blades, flat, often becoming 

 involute, smooth or usually more or less pubescent, at least on upper surface, 

 usually not over l l / 2 lines wide; spike erect, dense, 1 to 3 inches long, thick 

 and bushy from the numerous long awns ; glumes split into 3 or more lobes or 

 divisions, each extending into a long awn; lemmas mostly 4 to 5 lines long, 

 smooth, or scabrous toward apex, the awns and those of the glumes l 1 /^ to 4 

 inches long. 



Rocky or brushy hillsides and open dry woods and plains, California to 



Washington. 



As here understood the species includes the following. The original S. jubatum of Wash- 

 ington, with tall stout culms and large spikes with awns about 4 inches long (Ojai Valley, 

 Ventura Co. Hubby 48) : S. villosum, with villous-pubescent leaves, and awns 2 to 3 inches long 

 (Modoc Co., Davy; Sonoma Co., Samuels 225; Solano Co., Heller 5580; Alameda Co., Brewer 

 1220; Santa Clara Co., Elmer 5047; Stanislaus Co., Elmer 4852; Northfork, Griffiths 4634; 

 Santa Lucia Mts., Davy 7681; Templeton, Davy 7601; Tehachapi, Chase 5742; Ramona, 

 Brandegee 88) : S. multisetum, similar to S. jubatum but culms lower and awns shorter, com- 

 mon in the Coast Eanges from the San Francisco Bay region southward, intergrading with 

 the typical form and also with S. villosum: and S. polyanthrix, more or less pubescent, and 

 having awns 1^ to 2 inches long, a few scattered specimens resembling the type of S. polyan- 

 thrix (Yreka, Butler 823; Modoc Co., Griffiths $ Hunter 482; Dixie Mts., Davy; Vacaville, 

 Jepson 4247; Los Gatos, Heller 7498, Hitchcock 2640; Mariposa Co., Congdon; Cuyamaca 

 Mts., Brandegee 111). The California specimens so intergrade that it has been impossible 

 to separate satisfactorily these forms. 



Kefs. SITANION JUBATUM J. G. Smith, U. S. Dept. Agr. Div. Agrost. Bull. 18: 10. 1899; 

 Abrams, Fl. Los Ang. 63. 1904. S. villosum J. G. Smith, U. S. Dept. Agr. Div. Agrost. Bull. 

 18: 11. 1899. S. multisetum J. G. Smith, U. S. Dept. Agr. Div. Agrost. Bull. 18: 11. 1899, 

 type Coville $ Funston 1121; Abrams, Fl. Los Ang. 63. 1904. S. polyanthrix J. G. Smith, 

 U. S. Dept. Agr. Div. Agrost. Bull. 18 : 12. 1899, based on Polyanthrix hystrix. Polyanthrix 

 hystrix Nees, Ann. Nat. Hist. 1 : 284. 1838, type from California, Douglas. All the Cali- 

 fornia species are included under Elymus sitanion Schult. by Thurber (Wats. Bot. Cal. 2 : 327. 

 1880) and Davy (Jepson, Fl. W. Mid. Cal. 81. 1901). 



3. S. breviaristatum J. G. Smith. Culms 1 to l 1 /^ feet high; sheaths gla- 

 brous, slightly scabrous, the lower papery ; blades long, involute ; spike 1 to 2 

 inches long; glumes split as in S. jubatum, the awns of glumes and lemmas 7 

 to 10 lines long, spreading or recurved. 



A little-known species (or possibly a form of S. jubatum) represented by only 

 two specimens: Madison, Heller 5577; Panamint Mts., Coville & Funston 833. 



Ref. SITANION BREVIARISTATUM J. G. Smith, U. S. Dept. Agr. Div. Agrost. Bull. 18: 12. 

 1899, type Coville $ Funston 833. 



4. S. minus J. G. Smith. Culms low, much tufted, mostly 4 to 8 inches high ; 

 sheaths smooth or somewhat scabrous, or puberulent, the old ones usually 

 numerous at the base of the culms ; blades smooth or puberulent ; spike 1 to 2 

 inches long ; glumes, or at least some of them, bifid from near the base ; lemmas 

 smooth ; awns about an inch long, spreading. 



Dry hills and rocky slopes, California to Washington, mostly at altitudes 

 above 5000 feet. 



Loes. Yreka, Butler 1278 (differs in being pilose, thus referable to S. ciliatum Elmer of 

 Washington, if that prove to be a distinct species) ; Mt. Shasta, Brown 372 ; Last Chance, 

 Doten 46; Ebbetts Pass, Brewer 2072; Mt. Lyell, Hitchcock 3305; Mt. Pinos, Hall 6551; 

 Griffin, Elmer 3990; Mt. San Antonio, Abrams 1932, 2700; San Gorgonio Peak, Hall 7633; 

 San Jacinto Peak, Seed 2497; Tahquitz Peak, Eeed 2530. 



Refs. SITANION MINUS J. G. Smith, U. S. Dept. Agr. Div. Agrost. Bull. 18: 12. 1899, type 

 from Jacumba, San Diego Co., Schoenfeldt 3277. S. rigidum J. G. Smith, op. cit. 13. 



