31 



(Macouu 124), 1887; Griffin Lake, (Maconu 35), 1889; Kamloops, (Maconn 17354 

 H. G. S, C), 1889; Revcslstoke, (Macoim 17356 H. G. S. C), 1890; Comox, Van- 

 couver IslaDcl, (Maconn 155 H. G. S. C.), 1893. Washiufjton : Cascade Mountains, 

 (Braudegee 1168), 1883; Cascade Mouutains, (G. E.Vasey), 1889; Cascade Moun- 

 tains, (Lyall), 1860; Spokane County, (Suksdorf 89), 1884; Falcon Valley,^(Suka- 

 dorf 207), 1886; West Klickitat Couuty, (Suksdorf 142, 208, 2127), 1885-1892; 

 Skamania County, (Suksdorf 203, 205). 1886; North Fork Nooksak River, near 

 Mount Baker, (Suksdorf 2166j, 1890; Mount Adams, (Howell 82, Suk.sdorf 209). 

 Oregon: Sauvies Island, (Howell), 1883; Hood River, (Howell 194), 1886; Rogue 

 River Valley, (Howell), 1887; Crciter Lake, altitude 1,870 meters, (Coville ami 

 Leiberg 412), 1896. California: (Bolauder 818,6087,61)88), 1866; Merced River, 

 (Bolauder), 1866; Calaveras County, (Hillebrand 2244, 2245); Donuer Lake, 

 Sierra Nevada Mountaius, (Torrey 559), 1865; Merced River, (Torrey 559c), 1865. 



CALAMAGROSTIS CANADENSIS CAMPESTRIS Kearney, var. n. 



Low (not exceeding 5.5 dm.) ; leaf-blades erect, rather lirni, somewhat involute, the 

 largest 12 cm. long aud 2 mm. wide; panicles small, the largest 9 cm. long and 3 

 cm. wide, densely flowered, somewhat flexuous, straw-color, tinged with pale 

 purple, the branches somewhat spreading or nearly erect, the longest 4 cm. long; 

 spikelets 3.5 mm. long; empty glumes acuminate, hispidulous on the keel, else- 

 where minutely scabrous; i^alea about one-tifth shorter than the flowering 

 glume; callus-hairs copious, about equaling the palea. 



Type sj)ecimeu in the United States National Herbarium, collected on the borders of 

 marshes on the open prairie, Louis Plain, Assiniboia, by J. M. Macoun (56, 17418 

 H.G. S. C), July, 1883. 



25. Calamagrostis macouniana Vasey, Monog. Grasses. U. S., Contr. U. S. Nat. Herb. 

 3: 81 (1892). Deijeuxia macouniana Ynsey; Coult. Bot. Gaz. 10: 297(1895). 



Assiniboia to Missouri, Montana, and Washington. 



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



marshes, Louis Plain, Assiniboia, by J. M. Macouu (44), l!^83. 

 Specimens examined. — Missouri: Little Blue, Jackson County, (Bush. 386), 1896. 

 Manitoba: Black River, Lake Winnipeg, (J. M. Macoun 17391 H. G. S. C), 1884. 

 South Dakota: Chamberlain, (E. N.Wilcox 6), 1892. Assiniboia: Louis Plain, 

 (Macoun 44, 45, 17393 H. G. S. C), Montana: Manhattan (Kydberg 219U; Shear 

 422). Washington: Spokane County, (Suksdorf 1097), 1889. 

 Distinguished from C. canadensis by its usually stricter habit, smaller, more con- 

 tracted, and denser pauicles and small spikelets. The Missouri plant approaches 

 C. canadensis in its somewhat larger spikelets, looser panicles, and laxer habit, 

 b. Panicle more or less contracted. 

 ""Leaf-blades flat or nearly so, panicle not spiciform. 

 fProlongation of raehilla bearded its whole length, cari/opsis glabrous. 

 XCallns-hairs copious, two-thirds as long as to longer than the flowering glume. 



26. Calamagrostis scribneri Beal, Grasses N. Am., 2: 343 (1896). Deyeuxia dubia 

 Scribn.; Coult., Bot. Gaz. 11: 70(1886). Calamagrostis dubia ficrihu.; Vnsey, 

 Monog. Grasses U. S., Contr. U. S. Nat. Herb., 3 : 80 (1892). C. canadensis dubia 

 Vasey, 1. c. 



Montana and Yellowstone Park to British Columbia and Washington. 



Type specimen collected along Slough Creek, Yellowstone Park, altitude 2,034 meters, 

 by F. Tweedy (.585), 1885. 



Specimens examined.— J/oH/rtJia; Belt Mountains, (R. S. Williams 551), 1886; Fort 

 Logan, altitude 1,520 meters, (Scribner 365), 1883; (Knowlton) 1887; Spanish 

 Creek, altitude 1,824 meters, (Rydberg 3083, 3096, 3100 ; T. A. Williams 2009), 1896 ; 

 East Gallatin Swamps, altitude 1,.520 meters, (Rydberg 3203), 1896; Spanish 

 Creek Basin, altitude 2,432 meters, (T. A.Williams 2057), 1896. Wyoming : Yellow- 

 stone Park, (Tweedy 585), 1885. Colorado : (Wolf 664) 1873 ; (Letterman 44, 45), 

 1885. Alberta : Devils Head Lake near Banff, altitude 1,426 meters, (Macoun 23), 



