PIPER-—-PLORA OF THE STATE OF WASHINGTON, 151 
1. Elymus caput-medusae L Sp. P!. 1: 84. 1753. 
Tyre cocauity: “Habitat in Lusitaniae, Hispaniae maritimis.” 
SPECIMENS EXAMINED: Steptoe, Vasey 3076. 
2. Elymus canadensis L. Sp. PI. 1: 83. 1753. 
Sitanion brodiei Piper, Erythea 7: 100. 1899. 
Type tocauity: ‘Habitat in Canada.” 
Rance: Canada to Washington, south to Georgia and Texas. 
SPECIMENS EXAMINED: Alma, Elmer 518; Naches Valley, Piper 2584; Columbia River, 
46° to 49°, Lyall in 1860; Box Canyon, Areager 381; Pend Oreille River, Lyall in 1861; 
Wawawai, Brodie, July, 1898; Waitsburg, Piper 2561; Horner, July, 1896; Kiona, Cotton 
728: Mabton, Cotton 745; Parker, Dunn; Bishops Bar, Brodie, July, 1898. 
ZONAL DISTRIBUTION: Upper Sonoran and Arid Transition, 
3. Elymus leckenbyi Piper. 
Sitanion leckenbyi Piper, Erythea 7: 100. 1899. 
Tyre Locariry: “Sandy bars of Snake River at Wawawai, Wash.’’ Collected by Piper 
and Leckenby. 
Rance: Easterg Washington. 
SPECIMENS EXAMINED: Wawawai, Piper 3003, 3963, 3959, 3969, 3972; Leckenby 86. 
ZONAL DISTRIBUTION: Upper Sonoran, 
4. Elymus aristatus Merrill, Rhodora 4: 147. 1902. 
Tyee Locairy: “Silver Creek, Harney Co., Oregon.”’ 
Rance: Washington and Oregon. 
SPECIMENS EXAMINED: Falcon Valley, Suksdorf 5194, July 16, 1905. 
5. Elymus glaucus Buckl. Proc. Acad. Phila. 1862: 99. 1862. 
Elymus americanus Vasey & Seribn.; Macoun, Cat. Can, Plants 2: 245. 1888. 
Tyre Locauitry: “Columbia River.” Collected by Nuttall. 
Rance: Alaska to the Great Lakes, Missouri, and California. 
SPECIMENS EXAMINED: Olympic Mountains, Flett 839, 833; Fairhaven, Piper 2608; 
Mason County, Piper, July, 1890; Tacoma, Leckenby, August, 1898; Falcon Valley, Suks- 
dorf 2151; Ellensburg, Whited 687; Yakima, Leckenby, June 20, 1898; Wenache, Whited 
1301; Whitman County, Piper, July, 1894; Wind River, Flett 1393; Wawawai, Piper, 
June, 1896, 2566, 2999, 3058; Blue Mountains, Lake & Hull 78, 82. 
ZONAL DISTRIBUTION: Mainly Transition. 
6. Elymus borealis Scribn. U. S. Dept. Agr. Div. Agrost. Cire. 27: 9. 1900. 
Elymus ciliatus Scribn. U.S. Dept. Agr. Div. Agrost. Bull. 11: 57. 1898, not Muhl. 
Gram. 179. 1817. 
Type Locatiry: “Common in wet places, Sitka, Alaska.”’ 
Rance: Alaska to Washington. 
SPECIMENS EXAMINED: Olympic Mountains, Piper 1992; Mlett 833; Elmer 1907. 
ZONAL DISTRIBUTION: Hudsonian. 
7. Elymus virginicus submuticus Hook. Fl. Bor. Am. 2: 255. 1840. 
Elymus curvatus Piper, Bull. Torr. Club 30: 233. 1903. 
Type Locauity: “Cumberland House Fort, on the Saskatchewan.” 
Rance: Washington to Ontario and south to Kansas. 
SPECIMENS EXAMINED: Box Canyon, Kreager 375. 
8. Elymus virescens Piper, Erythea 7: 101. 1899. 
Type Locauity: “In damp coniferous woods, 3,000 ft. altitude, Olympic Mts., near the 
head of the Duckaboose River.’’ Collected by Piper. Not otherwise known. 
