24 



CaliforDia. 



Type specimen in the United States National Herbarium, collected on tbe plains of 



Mendocino by C. G. rringle, Anunst, 1882. 

 RrKCiM.KNSKXAMiNED. — Mendoclno (Pringle), 1882; Mount Tamalpais, Marin County 



(Cougdon 36a), 1889. 

 Nearly related to C. siiksdorfii, differing in its strict habit; innovations forming a close 



tuft at the base of the culms (which gives the plant a characteristic appearance) ; 



leaf-blades rigid and strongly involute; panicle dull brown ; empty glumes more 



scabrous; awn bent nearer its apex; palea equaling or slightly exceeding the 



dowering glumes; and callus hairs longer. 



17. Calamagrostis rubescens Buckl., I'ror. Phila. Acad. (1862), 92 (1863). Detjenxia 

 varia Scribn., Bull. Torr. Club. 9: 45 (1882), not Kunth. D. ruhescens Scribn., 

 Bull. Torr. Club. 10: 8 (1883). 



British Columbia and Alberta to California. 



Type specimen in the herbarium of the I'liiladelpliia Academy of Sciences, collected 

 in Oregon by Nnttall. 



Speci.mexs ICXAMIN'KD. — AJherta: Sheep Mountains, altitude 1,976 meters (Macoun 

 13113 H. G. S. C), 1895; Bantf (Canby 17), 1895. Jhitish Cohiinbia: Donald 

 (Macoun 17435 H. G. S. C), 1885; Deer Park, Lower Arrow Lake (Macoun 17134 

 H. G. S. C), 1890; Ains worth, Kootenai Lake, altitude 848 meters (Macoun 17436 

 H. G. S. C), 1890; Kickiug Horse Lake, altitude 1,520 meters (Macoun 22), 1890. 

 Washington: Cascade Mountains (G. 1?. Vasey), 1889; (Henderson 2152), 1892. 

 Oregon: (Nuttall). California: Head waters Sacramento Kiver, altitude 1,520 

 meters (Pringle), 1881 (not typical); Santa Cruz (Anderson), 1886; Mount 

 Tamalpais (Blankensliip 28), 1-91. 



Nearly related to C. siiksdorfii and sometimes rather difhcult to distinguish from that' 

 species. The long, narrow, spike-like, usually red-purple panicle and usually 

 glabrous or nearly glabrous Jlowering glume are the most oltvious characters. 

 The California specimens with greenish panicles are less typical. 



18. Calamagrostis suksclorfii Scribn. ; Vasey Monog. Grasses U. S., Contr. U. S. 

 Nat. Herb. 3: 82 (1892). Deyenxia snlcsdorfii Scrihn,; Vasey Descr. Cat. Grasses 

 U.S. 51 (1885). 



Wyoming and Montana to British Columbia and central California. 



Type specimen collected in the canyon of Smith Elver, Montana, altitude 2,432 

 meters, by F. Lamson-Scribner in 1883. 



Specimens examined. — llontana ■ Smith Kiver (Scribner 364), 1883 ; (R. S. Williams 

 1050), 1894; Glendive (E. A. Ross), 1892; Baldy Peak, Bozemau (IJydberg 2230), 

 1895; Diy Fork Belt Creek, altitude 1,216 meters (Kydberg 3340, 3359). 1896; 

 Barker, altitude 1,824 meters (Rydberg 3384), 1896. Wijomiug: Mammoth Hot 

 Springs, Yellowstone Purk (Mulford), 1892. Northwest Territory: Louis Plain 

 (Macoun 39), 1883. Idaho: Lake Pend d'Oreille, Kootenai County (Sandberg 

 769), 1892; Lake Tesemini, Kootenai County (Sandberg 682 1, 1892; Beaver 

 Canyon (Rydberg 2325. 2332; Shear 575, 578), 1895; Latah County (Elmer 335). 

 Alberta: Banff (Macoun 11455 H. G.'S. C), 1891. British Colnmhia: Aiusworth, 

 Kootenai Lake, altitude 848 meters (Macoun), 1890; Eraser River (Fletcher 52), 

 1S83; Kooteuai Pass (Dawson 17438 H. G. S. C), 1883. Washington: Falcon 

 Valley (Suksdorf 26, 607), 1882-1885; Spokane County (Suksdorf 92), 1884; Spo- 

 kane (Piper 1918), 1894; Pullman (Piper 1919), 1894; Big Klickitat River, Cas- 

 cade Mountains (Henderson 2150, 2151, 2153, 2155), 1892. Oregon : (Howell 195), 

 1886; Union County (Cusick 1150, 1317), 1884-1886. California: (Kellogg and 

 Harford 1089). 



CALAMAGROSTIS SUKSDORFII LUXURIANS Kearney, var. n. 



A large form, resembling C. cnsichii in size and habit. Culms stout. 10 to 13 dm. 

 long, usually of softer texture than in the type; leaf-blades usually laxer and 

 less involute, sometimes ilat; panicle large, 1 to 2 dm. long, 2 to 3 cm. wide, 

 oblong-lanceolate, often more loosely llowered than in the type, the longest 



