134 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 



24. Poa multnomae Piper, Bull. Torr. Club 32: 435. 1905. 



Sporobolus bolanderi Vasey, Bot. Gaz. 11: 337. 1896, not Poa holanden Vasey, 1882. 



Type locality: Multnomah Falls, Oregon. 



Range: Washington and Oregon. 



Specimens examined: Cape Horn, Piper 4902; Klickitat County, Suksdorf 77. 



Zonal distribution: Humid Transition. 



25. Poa vaseyochloa Scribn. U. S. Dept. Agr. Div. Agrost. Circ. 9: 1. 1899. 

 Poa pulcMla Vasey, Bot. Gaz. 7: 32. 1882, not Salisb. 1796. 



Type locality: "On the Columbia river, from near the river bank to the summit of the 

 hills," Klickitat County, Washington. Collected by Suksdorf. 



Range: Washington and Oregon. 



Specimens examined: White Salmon River, Suksdorf 2; Columbia River, Klickitat 

 County, Suksdorf I; Mountains, Klickitat County, Suksdorf, April 28, 1881. 



26. Poa gracillima Vasey, Contr. Nat. Herb. 1: 272. 1893. 



Type locality: Mount Adams, Washington. Collected by Suksdorf. 

 Range: Washington and Oregon. 



Specimens examined: Mount Adams, Suksdorf 33; Howell 86, 87; Henderson 2229; 

 Mount Stuart, Elmer 1153. 



27. Poa saxatilis Scribn. & Williams, U. S. Dept. Agr. Div. Agrost. Circ. 9: 1. 1899. 

 Type locality: "Mt. Rainier, Washington, altitude 21(X) meters." 



Range: W^ashington to California, in the mountains. 



Specimens examined: Olympic Mountains, Piper 1993, 983; Elmer 1928; Flett 834, 97; 

 Mount Rainier, Piper 1961, 1962, 1963, 1964; Mount Stuart, Elmer 1154, 1155; Blue Moun- 

 tains, Piper 2555. 



Zonal distribution: Arctic. 



28. Poa idahoensis Beal, Grasses N. Am. 2: 539. 1896. 

 Poa/Zt/oZiaVasey, Contr. Nat. Herb. 1: 271. 1893, not Schur. 1866. 

 Poa scabrifolia Heller, Bull. Torr. Club 24: 310. 1897. 



Poa spillmani Piper, Erythea 7: 102. 1899. 

 Type locality: Hatwai Creek, Nez Perces County, Idaho. 

 Range: Washington and Idaho. 



Specimens examined: Wenas, Griffiths cfc Cotton 94; Douglas County^ SpiUman, May 

 27, 1896. 



Zonal distribution: Arid Transition. 



29. Poa capillarifolia Scril)n. & W^illiams, U. S. Dept. Agr. Div. Agrost. Circ. 9: 1. 



1899. 

 Type locality: California. 

 Range: Washington to California. 



Specimens examined: Cleman Mountain, Henderson 2238; Ellensburg, Piper 2614, 

 2615; opposite Clarkston, Hunter 42. 

 Zonal distribution: Arid Transition. 



30. Poa cottoni Piper, Proc. Biol. Soc. Wash. 18: 146. 1905. 



Type locality: Rattlesnake Mountains, Yakima County, Washington. 

 Range: Eastern Washington and eastern Oregon. 



Specimens examined: Rattlesnake Mountains, Cotton 557; Griffiths & CoUon 4, 20; 

 Kahlotus, Cotton 1010. 



Zonal distribution: Arid Transition. 



31. Poa cusickii Vasey, Contr. Nat. Herb. 1: 271. 1893. 

 Type locality: Oregon. Collected by Cusick. 

 Range: Washington and Oregon. 



