PIPER FLORA OF THE STATE OF WASHINGTON. 125 



Specimens examined: Olympic Mountains, ZsZ/;(fr 1947; Cascade Mountains, 49°, Lyall 

 in 1860; Mount Rainier, Piper 2620, 1951; Mount Adams, Howell 423; Flett 1414; Yakima 

 County, Henderson 2261, 2262; Loomis, Elmer 556; Klickitat River, Flett 1368; Blue 

 Mountains, Piper, July, 1896; without locality, Samlberg Jt Leiberg 687. 



Zonal distribution: Arctic. 



2a. Trisetum spicatum niolle (Michx.). 

 Avena mollis Michx. Fl. Bor. Am. 1: 72. 1803. 

 Trisetum subspicaturn /nolle Gray, Man. ed. 2. 572. 1856. 

 Type locality: "Hab. in Canada." 

 Range: Alaska to New England and Oregon. 



Specimens examined: hoomh, Elmer 633 ■. Cascade Mountains, T'asey 386. 

 Zonal distribution: Arctic. 



3. Trisetum canescens Buckl. Proc. Acad. Phila. 1862: 100. 1862. 



Type loc.vlity: "Oregon, Columbia Plains." Collected by Xuttall. 



Range: British Columbia to Idaho and California. 



Specimens examined: Clallam County, Elmer 1944, 1945; Seattle, Piper, June, 1891; 

 Smith 1097; Olympia, Henderson, June, 1892; Montesano, Heller 3931; upper Niscjually 

 Valley,. -!?/('«. 48; Mount Siuavt, Elmer 1143; Kamiak Butte, P(!>/", July 20, 1899; Palouse, 

 F. D. Cloud, June, 1895; Blue Mountains, Horner 502, 518; Cascade Mountains, Wisey 483; 

 Stehekin, Griffiths & Cotton 238. 



Zonal distribution: Transition. 



5. Trisetum cernuum Trin. Mem. Acad. St. Petersb. 1: 61. 1830 (January). 



Avena nutkaensis Presl, Rel. Haenk. 1: 254. 1830. 



Trisetum sandbergii Beal, Grasses N. Am. 2: 378. 1896. 



Trisetum nutkaense Scribner & Merrill, Univ. Cal. Bot. Pui)l. 1 : (i3. ltK12. 



Type locality: "Ex Ins. Sitka." 



Range: Alaska to California and Idaho. 



Specimens examined: Olympic Mountains, Elmer 1946; Mount Rainier, Stnith 979: 

 Longmire Springs, Smith, August, 1890; upper Nisqually Valley, Allen 42; Seattle, Piper, 

 Smith 846; Wenache Region, Brandegee 1177; Pullman, Pijier, July 13, 1899; Klickitat 

 River, Flett 1368, 1412: Blue Mountains, Lake d- Hull 64: Mount Stuart, Samlberg d- 

 Leiberg 823. 



Zonal distribution: Humid Transition. 



PHRAGMITES. 



1. Phragmites phragmites (L.) Karst. Deutsch. Fl. 379. 1880-83. Reed. 



Arundo phragmites L. Sp. PI. 1: 81. 1753. 



Phragmites communis Trin. Fund. Agrost. 134. 1820. 



Type locality: "Flabitat in Europae lacubus, fluviis." 



Range: British Columbia to Quebec south to Georgia and California, Europe, Asia. 



Specimens examined: Ophir, Elmer 519; Columbia River, Scouler; Vr&\) Creek, Douglas 

 County, Lake cfc Hidl 113; l)etween Yakima and Ellensburg, Piper. 



Zonal distribution: Arid Transition. 



EATONIA. 



Panicle dense, erect; upper glume obova te 1. E. obtusata. 



Panicle lax, often drooping; upper glume oblanceolate 2. E. pennsylvanica. 



1. Eatoiiia obtusata (Michx.) Gray, Man. ed. 2. 558. 1856. 

 Aira obtusata Michx. Fl. 1: 62. 1803. 



Type locality: "Hab. in aridis, a Carolina ad Floridam." 

 Range: Washington to Ontario and Massachusetts, southward to Arizona and Florida. 



