186 



GRAMINEAE 



is not given, have very compound panicles, about 13 inches long and 3 inches 

 wide. 



Var. pubens Piper. Sheaths and blades pubescent. Santa Barbara, Hitchcock 

 2582; also in Washington. 



Refs. ELYMUS CONDENSATUS Presl, Eel. Haenk. 1: 265. 1830, type from Monterey, Haenke; 

 Thurb. in Wats. Dot. Cal. 2: 326. 1880; Davy in Jepson, Fl. W. Mid. Cal. 78. 1901; Abrams r 

 Fl. Los Ang. 61. 1904. Var. PUBENS Piper, Erythea 7: 101. 1901. 



4. E. triticoides Buckl. Culms usually glaucous, 2 to 4 feet tall, usually in 

 large masses, from extensively creeping, scaly rhizomes; sheaths smooth or 

 scabrous ; blades narrow, mostly 1 to 3 lines wide, flat or soon involute ; spike 

 erect, slender, sometimes branched; glumes subulate, 5 to 7 lines long; lemmas 

 3 to 5 lines long, glabrous, short-pointed. 



Moist bottomland and alkaline soil, throughout the state, commoner in the 

 southern portion ; north to Washington and east to Colorado and Arizona. 



Var pubescens Hitchc. n. var. Sheaths and involute blades hirsute-pubescent, 

 (Et laminae involutae et vaginae hirsutae.) Type in the National Her- 

 barium, collected at Griffin, Ventura Co., by Elmer (no. 3748). No other 

 specimens have been observed. 



Refs. ELYMUS TRITICOIDES Buckl. Proc. Acad. Phila. 1862 : 99. 1863 ; Davy in Jepson, 

 Fl. W. Mid. Cal. 78. 1901; Abrams, Fl. Los Ang. 61. 1904. E. condensatus Presl var. 

 triticoides Thurb. in Wats. Bot. Cal. 2: 326. 1880. E. orcuttianus Vasey, Bot. Gaz. 10: 258. 

 1885, type from San Diego, Orcutt; Abrams, Fl. Los Ang. 62. 1904. Agropyron arenicolum 

 Davy in Jepson, Fl. W. Mid. Cal. 76. 1901, type from Pt. Eeyes, Davy 6879; the following 

 dwarfed seacoast specimens, 6 to 10 inches high, also belong to this: Pt. Reyes, Davy 6781; 

 mouth of Salinas River, Davy 7548; Pacific Grove, Hitchcock 2608; Monterey, Davy 7272; Pt. 

 Sur, Davy 7752. 



5. E. arenarius L. Culms stout, smooth, or pubescent above, glaucous. 2 

 to 4 feet high from creeping rhizomes; sheaths and blades smooth or the latter 

 scabrous above ; spike erect, dense, 3 to 10 inches long ; glumes lanceolate, flat, 

 many-nerved, scabrous or pubescent, 5 to 10 lines long, acuminate, awnless, 

 about as long as the spikelet; lemmas about as long as glumes, scabrous or 

 felty-pubescent, acuminate or mucronate. 



Sand dunes along the coast : Santa Cruz, Anderson; San Mateo Co., Elmer 

 4770; Westport, Congdon. Northern coasts of North America and Eurasia. 



Refs. ELYMUS ARENARIUS L. Sp. PI. 83. 1753; Thurb. in Wats. Bot. Cal. 2: 326. 1880; 

 Davy in Jepson, Fl. W. Mid. Cal. 77. 1901. 



6. E. pubescens Davy. Culms 1 to 3 feet high; scabrous, sheaths scabrous 

 and pubescent ; blades flat or loosely involute, short ; spike 2 to 4 inches long ; 

 glumes linear-lanceolate, flat, acuminate, unawned, about 6 lines long, sca- 

 brous, about 5-nerved; lemmas scarcely as long as the glumes, short-awned. 



Pt. Arena, Davy 6028 (the only specimen in the National Herbarium), to 

 Pt. Reyes. 



Ref. ELYMUS PUBESCENS Davy in Jepson, Fl. W. Mid. Cal. 78. 1901, type from Pt. 

 Reyes, Davy. 



1. E. glaucus Buckl. Culms erect, 2 to 4 feet high, without rhizomes; 

 sheaths smooth or scabrous ; blades flat, as much as 5 lines wide, scabrous 

 on both surfaces, sometimes narrow and more or less involute ; spike erect, 

 usually dense, long-exserted, 2 to 6 inches long, rarely longer; glumes about as 

 long as the spikelet, lanceolate, 4 to 6 lines long, acuminate or awn-pointed, 

 with 2 to 4 scabrous nerves; lemmas avvned, the awn 1 to 2 times as long as 

 the body. 



Open woods, copses, and dry hillsides, throughout the state, north to Alaska 

 and east to Michigan and Missouri. 



