120 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
8. Agrostis ampla A. S. Hitchcock, U. S. Dept. Agr. Bur. Pl. Ind. Bull. 68: 38. 1905. 
TYPE Locaity: ‘On wet rocks near Rooster Rock, Multnomah County, Oregon.” 
Rance: British Columbia to Arizona. 
SPECIMENS EXAMINED: Olympic Mountains, Elmer 1953; Seattle, Henderson 2113: What- 
com Lake, Suksdorf 132; Bingen, Suksdorf 2829; Falcon Valley Suksdorf 132; Skamania 
County, Flett 1389. 
ZONAL DISTRIBUTION: Humid Transition. 
This species was previously referred to the Mexican A. virescens H. B. K. 
9. Agrostis exarata Trin. Gram. Unifl. 207. 1824. 
Agrostis grandis Trin. Mem. Acad. St. Petersb. IV. 62: 316. 1841. 
Agrostis asperifolia Trin, op. cit. 317. 
Agrostis scoulert THin. op. cit. 329. 
Agrostis albicans Buckl. Proc. Acad. Phila, 1862: 91. 1862. 
Type Locaity: ‘Ex Unalaschka.’’ Collected by Eschscholtz. 
Rance: Alaska to Mexico. 
SPECIMENS EXAMINED: Olympic Mountains, Elmer 1952; Clallam County, Elmer 1949; 
Montesano, //eller 4018; Point Orchard, Piper 2311; Seattle, Henderson 2114; Upper 
Nisqually Valley, Allen 45; Wenache Region, Brandegee 1163; North Yakima, Watt, 
August, 1895; Yakima River, Cotton 425; Cascade Mountains, 49°, Lyall in 1859; South- 
bend, Spillman, August 17, 1899; Chelan, Elmer 485; Douglas County, Sandberg & Leiberg 
370; Wilson Creek, Lake & Hull 97; Spokane, Piper 2852, 2623; Steptoe, Vasey, June, 
1900; Waitsburg, Horner 499; Blue Mountains, Salmon River, Horner 496; Pullman, 
Piper 1759, 1923; Cascade Mountains, Vasey 149. 
ZONAL DISTRIBUTION: Upper Sonoran to Arctic. 
10. Agrostis rossae Vasey, Contr. Nat. Herb. 3: 76. 1892. 
Agrostis varians Trin. Mem, Acad. Petersb. VI. 62: 314. 1841, not Thuill. 1790. 
Agrostis variabilis Rydberg, Mem. N. Y. Bot. Gard. 1: 32. 1900. 
TYPE LocaLiry: Yellowstone Park, Wyoming. 
Rance: British Columbia to Colorado and California. 
SPECIMENS EXAMINED: Olympic Mountains, Elmer 1948, Piper 1994: Nason Creek, 
Sandberg & Leiberg 656; Mount Rainier, Allen 179; Piper 1978, 1979, 1972, 1980, 1970; 
Skamania County, Suksdorf 1020; Mount Adams, Henderson 2127; Atanum River, Hen- 
derson 2119; Horseshoe Basin, Elmer 730; Walla Walla, Piper 179. 
ZONAL DISTRIBUTION: Hudsonian and Arctic. 
11. Agrostis hyemalis (Walt.) B.S. P. Prel. Cat. N. Y. 68. 1888. 
Cornucopiae hyemalis Walt. Fl. Car. 73. 1788. 
Agrostis scabra Willd. Sp. Pl. 1: 370. 1799. 
Agrostis nutkaensis Kunth, Enum. Pl. 1: 222. 1833. 
Trichodium album Presl, Rel. Haenk. 1: 244. 1830. 
Agrostis laxiflora (Michx.) Richards. Bot. App. Frankl. Journ, 731. 1823. 
Type Locairy: Carolina. 
Rance: Throughout most of North America. 
SPECIMENS EXAMINED: Clallam County, Elmer 1950; Southbend, Spillman, August 17, 
1899; Orcas Island, Henderson 2112; Snoqualmie Falls, Piper 827; Nisqually Valley, 
Allen 43; Tacoma, Flett 17; Cascade Mountains, Henderson, August, 1892; Tieton River, 
Cotton 435; North Yakima, Watt in 1895; Glenwood, Flett 1395; Parker, Dunn, August 8, 
1901; Ophir, Elmer 510; Loomis, Elmer 557; Thorn Creek, Vasey, July 10,1901; Steptoe, 
Vasey, July, 1900; Spokane, Henderson 2111; Pullman, Piper 1927; Blue Mountains, 
Horner 505; Cascade Mountains, Vasey 382, 68. 
ZONAL DISTRIBUTION: Transition. 
