134 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 



24. Poa multnomae Piper, Bull. Torr. Cluh 32: 435. 190.5. 



Spor-obolufi holanderi Vasey, Bot. Gaz. 11: 337. 1896, not Poa holanderi Vasey, 1882. 



Type locality: Multnomah Falls, Oregon. 



Range: Washington and Oregon. 



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



Zonal distribution: Humid Transition. 



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

 Poa pulchella Vasey, Bot. Gaz. 7: .32. 1882, not Salisb. 17%. 



Type locality: "On the Columbia r'ver, 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, Sijksdorfl; 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, Suhsdorf 33: Hoirell 86, 87: Henderson 2229; 

 Mount Stuart, Elmer 11.53. 



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

 Type locality: "Mt. Rainier, Washington, altitude 2100 meters." 



Range: Washington to California, in t'le mountains. 



Specimens examined: Olympic Mountains, Piper 1993, 983: EJmer 1928; Fleit 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_^Zi/bZiaVasey, 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, Xez Perces County, Idaho. 

 Range: Wa.shington -and Idaho. 



Specimens examined: Wenas, Grijfiths d: Cotton 94: Douglas County SpiJIrnan, May 

 27, 1896. 



Zonal distribution: Arid Transition. 



29. Poa capilla.rifolia Scril)ii. & Williams, U. S. Dept. Agr. Div. Agrost. Circ. 9: 1. 



1899. 

 Type locality: California. 

 Range: Washington to California. 



Specimens examined: Cleman iMountain, Heivlerson 22.38: Ellensburg, Piper 2614, 

 2615; opposite Clarkston, Hunter 42. 

 Zonal distribution: Arid Transition. 



30. Poa cottoni Piper, Proc. Biol. Soc. Wash. 18: 146. 190.5. 



Type locality^: Rattlesnake Mountains, Yakima County, Washington. 

 Range: Eastern Washington and eastern Oregon. 



Specimens examined: Rattlesnake Mountains, Cotton boi \ Griffiths <f' Cotton 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. 



