PIPER—FLORA OF THE STATE OF WASHINGTON. 123 
Rance: California to Washington and Montana. 
SPECIMENS EXAMINED: Pullman, Elmer 1011; Piper 1744; Horner 879; Steptoe, Vasey, 
June, 1900; without locality, Sandberg & Leiberg 488. 
The following specimens are doubtfully referred here: Coupeville, Gardner 342; Seattle, 
Smith 829; Kitsap County, Piper 821. 
ZONAL DISTRIBUTION: Transition. 
4. Merathrepta americana (Scribn.). 
Danthonia americana Seribn. U.S. Dept. Agr. Div. Agrost. Cire. 30: 5. 1901. 
Danthonia grandiflora Philippi, Anal. Univ. Chil. 568. 1873, not Hochst. 1851. 
Type Locairy: Chile. 
Rance: British Columbia to California. Chile. 
SPECIMENS EXAMINED: Montesano, Heller 3908; Falcon Valley, Suksdorf 150. 
ZONAL DISTRIBUTION: Transition. 
5. Merathrepta unispicata (Thurb.). 
Danthonia unispicata Thurb. in S. Wats. Bot. Cal. 2: 294. 1880. 
Type vocauty: “From San Diego to San Francisco,” California. 
Rance: Washington to California. 
SPECIMENS EXAMINED: Spokane, Piper 2599; without locality, Geyer 189; Pullman, 
Elmer 1327; Brodie, June, 1898. 
ZONAL pistripuTion: Arid Transition. 
AVENA. 
1. Avena fatua glabrata Petermann, Flora des Bienitz 13.1841. SMoorH wiLp oat. 
Avena fatua glabrescens Coss. Fl. Alg. 113. 1864-67. 
Type Locauity: Not determined. 
Rance: Introduced on the Pacific coast, especially in Washington, Oregon, and Idaho. 
SPECIMENS EXAMINED: Tacoma, Piper, July 5, 1897; Pullman, Piper, July 2, 1894. 
DESCHAMPSIA. 
Lower glume 1-nerved. 
Glumes not longer than the florets.........------------+-+--- 1. D. cespitosa. 
Glumes longer than the florets..........--------------------- 2. D. atropurpurea. 
Lower glume 3-nerved. ° 
Annual; glumes 5 to 7 mm. long.........-------------------- 3. D. calycina. 
Perennial; glumes 3 to 4 mm. long....-----.----- Lecce eee eee 4. D. elongata. 
1. Deschampsia cespitosa (L.) Beauv. Agrost. 91, 160, 1812. 
Aira cespitosa L. Sp. Pl. 1: 64, 1753. 
Tyre Locatiry: Europe. 
Rance: Alaska to Labrador south to California, Arizona, Illinois, and New Jersey. Eu- 
rope, Asia. 
SPECIMENS EXAMINED: Olympic Mountains, Elmer 1665; Sumas Prairie, Lyall in 1858-9; 
Seattle, Smith 858; Gray’s Harbor, Henderson, June, 1892; Fort Vancouver, Garry in 1826; 
Railroad Creek, Elmer 718; Wenache River, Whited; Spokane, Piper, September, 1896; 
Pullman, Piper 1749; Steptoe, Vasey 12; Pend Oreille River, Lyall in 1861; Waitsburg, 
Horner 509; Lake Kalispel, Kreager 328; Lake Chelan, Vasey 24; without locality, Vasey 367. 
ZONAL DISTRIBUTION: Transition. 
2. Deschampsia atropurpurea (Wahl.) Scheele, Flora 27: 56. 1844. 
Aira atropurpurea Wahl. Fl. Lapp. 37. 1812. 
Aira latifolia Hook. F1. Bor. Am. 2: 243. 1840. 
Deschampsia atropurpurea latifolia Scribn. in Macoun, Cat. Can. Pl. 2: 209. 1888. 
Tyre Locauity: Finmark. 
