184 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 



The Falcon Valley specimen was the basis for the inclusion of Jiniciis cJdoivcephalus 

 P^ngelni. in Suksdorf's list. 



27. Juncus ensifoHus Wiks. Kongl. Vet. Akad. Handl. 2: 274. 1823. 



J uncus xiphioides trianJrus Engelm. Trans. St. Louis Acad. 2: 482. 18G8. 



Juncus xiphioides macranfhus Engelm loc. cit. 



Type locality: Not ascertained. 



Range: Alaska southward in the mountains to California. 



Specimens examined; Montesano, Heller 3968, Seattle, Piper 1038; Skamania County, 

 Flett 1388; Bridge Creek, Elmer 645; Lake Chelan, Lake & Hidl 360; Nason City, Sandberg cfc 

 Leiberg 608, Blue Mountains, Piper 2275; Pullman, Piper 1938; Stehekin, Griffiths & Cotton 

 193; Clealum Lake, Cotton 848; Cascade Mountains, latitude 49°,Lyall; Grays Harbor, 

 Wilkes Expedition 237. 



Zonal distribution: Transition to Canadian. 



27a. Juncus ensifolius major Hook. Fl. Bor. .\m. 2: 191. 1840. 



Juncus xiphioides monlanus Engelm. Trans. St. Louis Acad. 2: 481. 1868. 



Juncus saximonianus A. Nelson, Bull. Torr. Club. 29: 401. 1902 



Ty'PE locality: "Sources of the Columbia River, in the Rocky Mountains." 



Range: British Columbia to Oregon and Idaho. 



Speci.mens examined: Olympia, Henderson, October 2, 1892, Wenache, Whited 82, 207: 

 Ellensburg, Whifed 710; Blue Mountains, Lake <& Hull 376; Silver Lake, Henderson, July 13, 

 1892; North Yakima, Iffl^/, August, 1895. 



28. Juncus oxymeris Engelm. Trans. St. Louis Acad. 2: 483. 1868. 

 Type locality; "Sacramento Valley, Cal." Collected by Ilartwcg. 

 Range: Washington to California. 



Specimens examined; Seattle, Pvyx/-, July 4, 1897; <S'w(?7?i. 1032 

 Zonal disthibution: Humid Transition. 



29. Juncus mertensianus Bong. Mem. Acad. St. Petersb. VI. 2: 167. 1832. 

 Type locality; Sitka. 



Range; Alaska to California and Colorado. 



Specimens examined: Clallam County, Elmer 2735, Olympic Mountains, Flett 827: 

 Mount Rainier, Piper 1037; Allen 272, 273: Smith, August, 1890, Mount Stuart, Elmer 1131 ; 

 Cascade Mountains, 49°, LyoZZ in 1860; Skamania County, Suksdotf 2042; Fle't 1376; Klicki- 

 tat River, Flett 1417, Wenache Region, Brandegee 676; Stevens Pass, Whited, August 27, 

 1901 ; Tieton River, Cotton 438; Skagit Pass, Lake & Hull 405; Bridge Creek, Elmer 650; 

 Blue Mountains, Piper 2276, Kalispel Lake, Kreager 336. 



Zonal distribution; Arctic. 



29a. Juncus mertensianus filifolius Suksdorf, Deut.sch. Bot Monat.ss. 19: 92. 1901. 

 Type locality; "Skamania County," Washington. 



JUNCOIDES. Wood rush. 



Flowers in clusters of 2 to 3 or solitary in an open panicle. 



Leaves 10 to 12 mm. broad; j)erianth brown, 3 to 3.5 nun. long 1. J. glabmlum. 



Lciives 6 to 8 or 10 mm. Inroad; perianth 1.5 to 2.5 long. 



Panicle rays drooping; leaves with a few pilose hairs at base. 

 Flowers and capsules pale green; leaves tliin, shining; seeds 



brown, ellipsoid 2. J. pnrvijlorum. 



Flowers and capsules dark brown; leaves thick, dull; seeds 



yellow constricted at eaich end 3. J. piperi. 



Panicle rays divaricate; leaves without pilose hairs 4. J. divaricatum. 



Flowers congested into 1 to several spike-like or head-like clusters. 



Inflorescence nodding, nearly always of a single spike-like cluster. . 5. J . spicatum. 

 Inflorescence of 2 to 12 globose or oblong clusters. 6. J. campestre. 



