182 GRAMIXEAE 



6 inches long; gluiiies firm, nearly as long as the spikelet, gradually tapering 

 iuto an awned point ; lemmas short-awned. 



Open woods, rocky slopes and upland plains, in the region of ilt. Shasta, in the 

 Sierra Nevada and in the southern moiuitains; also in Yolo Co. {Blankinship 43) 

 and San INfateo t'o. {Bolaiider 1512) ; extends north to Alaska and east to Labra- 

 dor and New England. The following speeimens have thicker spikes with more 

 imbricated spikelets, the form (var. longifolium) to which the name A. p.5eudii- 

 repens has sometimes been misapplied: Woodland. Blankiitsliip -i'i: Yreka, Bnt- 

 kr 850; San Bernardino i\rts.. Hall 7659; Mt. Pinos, Hall 6418. 



Eefs. — Agropyrox texerum Vasey, Bot. (iaz. 10: 258. ISSo; Davy in Jcpson, Fl. W. Jtid. 

 Cal. 76. 1901. Var. lonrji folium Seribn. & Smith, U. S. Dept. Agr. Div. Agrost. Bull. 4: 30. 

 1897. Triticum liolaceum [Hornem. misapplied by] Tliurb. in Wats. Bot. Cal. 2: 324. 1880. 

 Agropyron caninum L. var. teiirrum Pease & Moore, Rliodora 12: 71. 1910. 



8. A. caninum Beau^-. Culms erect. ] to 3 feet high, without rhizomes; 

 blades flat, rather lax, 1 to 3 lines wide, scabrous; spike more or less nodding 

 at apex, rather dense, 3 to 6 inches long; spikelets 6 to 7 lines long; glumes 

 pointed or awned; lemmas 3 to 5-ner^■ed ; awn straight, or somewhat spread- 

 ing, once or twice the length of the lemma. 



Dry hillsides and mountain meadows, in the Sierra Nevada and southern 

 mountains., also in the Santa Lucia Mts. (Davy 7647, 7713) ; extends east to 

 Colorado and north to Alaska and Greenland. 



Refs. — AiiROPYKUx CAXIXUM Beauv. Ess. Agrost. 102. 1812. Triticum caniiiuin L. Sp. PI. 

 86. 1753; Tburb. in Wats. Bot. Cal. 2: 324. 1880. 



!). A. vaseyi Scribn. & Smith. Culms slender, 2 to 3 feet high, without rhi- 

 zomes; blades narrow, involute, erect, smooth; spike slender, 2 to 4 inches 

 long; spikelets rather distant. 5 to 8 lines long; glumes 3 to 5 lines long, acute, 

 but not awned, thin, scarious at margin and tip. strongl.v 3 to 5-nerved; lemmas 

 faintly nerved, terminating in a slender, finally liorizontall.y spreading awn as 

 much as % inch long. 



Rocky or arid hillsides, northeastern California, to Alberta, ilontana and 



New Mexico. 



Locs. — Klamathon, Cupelaiid 3542; Forestdale, Bal'cr 4' Nutting, Davy; Warner Mts., 

 Griffiths 4' Hunter 464; Modoc Nat. For., Hatton 150; Jess Valley to Blue Lake, Modoc Co., 

 Griffiths 4- Hunter 402; Dixie Mts., Baler <>'■ Nutting; Amedee, Davy. 



Refs. — Agropyrox v.^seyi Scribn. & Smith IT. S. Dept. Agr. Div. Agrost. Bull. 4: 27. 1S97. 

 Triticum strigosvm [Lessing, misapplied by] Thurb. in Wats. Bot. Cal. 2: 324. 1880. The 

 specimen in the Gray Herbarium described by Thurber was collected by J. G. Lemnion in 

 "Sierra, Nevada Co." 



10. A. scabrum Beauv. Culms 3 to 4 feet high, without rhizomes; blades 

 fiat; spike G to 8 inches long; spikelets rather distant, about % inch long; 

 glumes about ^j inch long, aliout 7-nerved. short-awned; lemmas about i^ 

 inch long, faintl.v nerved, terminating in a long stout spreading awn as nnu-li 

 as fi/o inches long. 



The only specimen seen is Bolaudm-'s no. 6468. collected soutli side of Eel 

 Ridge. It agrees fairly well with a specimen from Hunter's River, New South 

 Wales, collected l>y tin- Wilkes Exjiedition, but differs from most of the 

 Australian specimens of A. scabrum in having longer glumes. It resembles 

 A. arizonicum Scribn. & Smith, which, however, has shorter glumes. The Cali- 

 fornia specimen is tentatively referred to the Australian A. scabrum until the 

 species can be more thoroughly studied. 



Refs. — Agropyrox scabrum Beauv. Ess. Agrost. 102. 1S12; Davy in Jcijsun, Fl. \V. Mill. 

 Cal. 76. 1901. Triticum scabrum R. Br. Proilr. 17S. ISIO. Fisfu-a scahra Labill. Nov. H.iU. 

 PI. 1: 22. 1S04. 



