Oregon: Mt. Hood, No. 1315, L. F. Henderson, August 24, 1884. 



California: No. 6104, H. N. Bolander; No. 1866, J. G. Lemmon, Tnolomne River, 



Yosemite National Park, August, 1897. 

 Idaho: Beaver Canyon, No. 302, C. L. Shear, June 27, 1895, and No. 2057, P. A. 

 Rydberg, June 27, 1895 ; De Smet Mission, Coeur d'Alene Mountains, No. 

 1008, J. B. Leiberg, June 21, 1895; Salmon River near Petit Lake, No. 3568, 

 L. F. Henderson, July 30, 1895; without locality, Nos. 3064a and b, L. F. 

 Henderson, 1895, representing both the smooth (No. 3064a) and the hairy 

 (30646) forms of the species. 

 Montana : Lower basin, Gallatin River, J. W. Blankinship, July 8, 1898. 

 Wtjoming: Crazy Woman Creek, Big Horn Mountains, No. 2770, T. A. Williams. 

 August, 1897 ; Bear Lodge Mountains, near Sundance, No. 486, D. Gr.fftths, 

 August 10, 1897. 

 Colorado: No. 404, J. Wolf, 1873; Silverton, No. 1241, C. L. Shear, August 6, 

 1897 ; Red Dirt Divide, Steamboat Spring Road, Routt County, No. 1354, 

 Shear & Bessey, July 31, 1898. 

 The gi-ass is usually found in rather dry meadows and on mountain sides, reach- 

 ing an elevation of over 3,000 m. towards the southern limits of its range 

 and descending to 700 m. toward the northern limits. 

 DANTHONIA INTERMEDIA CUSICKII T. A. Williams, var. nov. 

 Distinguished from the type of the species by its larger size, longer, flatter, 

 softer, less scabrous leaves quite destitute of pubescence, except occasionally 

 on the younger leaves of the sterile shoots, loose, glabrous, shining sheaths, 

 rather larger spikelets and usually more open panicle. 

 Type specimen No. 2427, Wm. C. Cusick, Oregon, 1899, growing in partial shade 

 at an altitude of about 1200 m. Other specimens referable to this variety 

 are No. 2047, Cusick, head of Dirt Creek, Southern Blue Mountains, Oregon, 

 July 19, 1898; No. 2244, P. A. Rydberg, Mystic Lake, Montana, July 25, 1895; 

 No. 586, C. L. Shear, and No. 2338, P. A Rydberg, Beaver Canyon, Idaho, 

 August 7, 1895. 

 This form apparently grows in moister situations than the species. 

 DANTHONIA SPICATA LONGIPILA Scribn. & Merrill, var. nov. 

 A slender form, 3 to 4 dm. high, with small, few-flowered panicles and smaller 

 spikelets than in the species. Leaf blades very narrow, involute, pilose 

 throughout with scattered ascending hairs about 2 mm. in length. Basal 

 leaves 1 to 2 dm. long, those of the culm shorter. Empty glumes slightly 

 unequal, the fii-st 8 to 9 mm. long, the second about 1 mm. shorter. Flow- 

 ering glumes 2 to 2.5 mm. long, pilose. 

 Type specimen collected in Benton County, Arkansas. No. 38, E. N. Plank. 

 Nos. 40, 62, and 97, Plank, from the same locality, are the same. This vari- 

 ety is distinguished from the species by its smaller spikelets and pilose 

 leaves. 

 DANTHONIA EPILIS Scribn. nom. nov. Danthonia glabra Nash, Bui. Torr. 

 Bot. Club, 24 : 43. 1897. Not Dantlwnia glabra Philippi Anal. Univ. Chile, 

 Pi. Neuv. Chilenas, 94:30. 1896. 

 DESCHAMPSIA CURTIFOLIA Scribn. nom. nov. Deschampsiabrachyphylla 

 Nash, Mem. N. Y. Bot. Gard. 1 : 37. 1900. Not Deschampsia brachyphylla 

 Philippi Anal. Univ. Chile, PI. Neuv. Chilenas, 94:23. 1896; Deschampsia 

 brevifolia R. Br. App. Parry's Voy. 291. 1821. Not Aira brevifolia Bieb. 

 Fl. Taur. Cauc. 3:63. 1819. 

 CALAMAGROSTIS PERPLEXA Scribn. nom. nov. Calamagrostis nemo- 

 ralis Kearney U. S. Dept. Agr. Div. Agros. Bui. 11:26. 1898. Not Cala- 

 magrostis nemoralis Philippi Anal. Univ. Chile, PI. Neuv. Chilenas 94 : 18. 

 1896; C. Porteri of Vasey, Dudley Cayuga Fl. 125. 1886. Not A. Gray. 



