132 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 



Range: British Columbia to Nova Scotia, southward to Oregon, Nebraska, and New 

 Jersey. 



Specimens examined: Fairhaven, Piper 2810, 2604; Montesano, Heller 4016; Cascade 

 Mountains, 49°, Lyall in 1859; Seattle, Piper 1452; Ophir, Elmer 517; Spokane, Piper, 

 August 7, 1898; Clarks Springs, Kreager 52; \]sk, Kreager 362-. Steptoe, Fasey 61. 



Zonal distribution: Transition. 



11. Poa leptocoma Trin. Mem. Acad. St. Petersb. VI. 1: 374. 1830. 

 Type locality: Sitka. 



Range: Alaska to Washington. Siberia. 



Specimens examined: Olympic Mountains, Flett 835; Mount Stuart, Sandherg cfc Lie- 

 berg 806; Klickitat River, Cotton 1451; Mount Adams, S uksdorf lOS; Atanun; River, Heti- 

 derson 2230; Wenache Mountains, Elmer 470; CoUon 1308; Clallam County, Elmer 1919. 



Zonal distribution: Iludsonian. 



All the Washington specimens that have been referred to Poa rejiexa belong to P. lep- 

 tocoma. 



12. Poa bolanderi Vasey, Bot. Gaz. 7: 32. 1882. 

 Ty'PE locality: California. 



Range: Washington to California. 



Specimens examined: Blue Mountains, Piper 2558; Homer 489, 490. 



12a. Poa bolanderi chandleri (Davy). 



Poa howellii chandleri Davy, Univ. Cal. Bot. Publ. 1: 60. 1902. 



Type locality: "Shackleford Canon, near Marble Mt., Siskiyou County," California. 



Range: Washington to California. 



Specimens examined: Blue Mountains, Piper 2558; Horner 651, 652; without locality, 

 Vasey in 1889. 



13. Poa howellii Vasey & Scribn. U. S. Dept. Agr. Div. Bot. Bull. IS^: pi. 78. 1893. 

 Type locality: Portland, Oregon. Collected by Howell. 



Range: British Columbia to California. 



Specimens examined; Clallam County, Elmer 1924; Seattle, Piper 963, 962; Smith 

 962; without locality, Suhsdorf. 



Zonal distribution; Humid Transition. 



14. Poa alpina L. Sp. PI. 1: 67. 1753. 



Type locality; "Habitat in alpibus Lapponicis, Helveticis." 



Range; AlaskatoLabrador, south to Washington, Colorado, and Quebec. Asia. Europe 



Specimens examined: North Fork Bridge Creek, Elmer 675. 



Zonal distribution; Arctic. 



15. Poa pachypholis Piper, Proc. Biol. Soc. Wash. 18: 146. 1905. 



Type locality; "Ilwaco, Washington, on cliffs wet by the ocean spray, June 22, 1904." 

 Not othei-wise known. 



16. Poa canbyi (Scribn.) 



Glyceria canbyi Scribn. Bull. Torr. Club 11: 77. 1883. 



Atropis canbyi Beal, Grasses N. Am. 2: 580. 1896. 



Type locality: Cascade Mountains, Washington. Collected by Tweedy and by Bran- 

 degee. 



Specimens examined; Mount Stuart, Sandberg d- Leiherg 819: Cascade Mountains 

 Tweedy; Wenache Mountains, Cotton 1708. 



17. Poa leckenbyi Scribn. U. S. Dept. Agr. Div. Agrost. Circ. 9: 2. 1899. . 

 Type locality; Scott, Klickitat County, Washington. Collected by Leckenby. 

 Range; Washington. 



