184 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 



The Falcon Valley specimen was the basis for the inclusion of Juncus chloiocephalus 

 Engehn. in Suksdorf's list. 



27. Juncus ensifolius Wiks. Kongl. Vet. Akad. llandl. 2: 274. 1823. 

 Juncus xiphioides triandrus Engehn. Trans. St. Louis Acad. 2: 482. 1868. 

 Juncus xiphioides macranthus F^ngolni loc. cit. 



Type locality: Not ascertained. 



Range: Alaska stiuthward in the mountains to California. 



Specimeks examined: Montesano, Ileller 3968, Seattle, Piper 1038; Skamania County, 

 Flett 1388; Bridge Creek, Klu.ei MTr. Lake Chelan, ImIcc d' Hull 3(iO; Nason City, Sandbenj cfc 

 Leiberg 608, Blue Mountains, Pijxr 227.'); Pullman, Piper 1938; Stehekin, GriJfiUis tfc Cotton 

 193; Clealum Lake, Cotton 848; Ca.scade Mountains, latitude 49°,Lyall; Grays Harbor, 

 Wilkes Expedition 237. 



Zonal distribution; Transition to Canadian. 



27a. Juncus ensifolius major II«x)k. Fl. Bor. Am. 2: 191. 1840. 



Juncus xipliioides montanus Engehn. Trans. St. Jjouis Acad. 2: 481. 1868. 



Juncus saximontanus A. Nelson, Bull. Torr. ( luh. 29: 401. 1902 



Type locality: "Sources of the Columbia Kiver, in tiie Rocky Mountains." 



Range: British Columbia to Oi-egon and Idaho. 



Specimens examined: Olympia, Henderson, October 2, 1892, Wenache, Whited 82, 207; 

 Ellenshurg, Whited 710: Blue Mountains, lAtke cf Hull 376; Silver liiike, Henderson, July 13, 

 1892; North Yakinui, Watt, August , 189.5. 



28. Juncus oxymeris P^ngclm. Trans. St. Ijouis Acad. 2: 483. 1868. 

 Type ixx;ality: "Sacramento Valley, Cal." Collected by Hartweg. 

 Range: Washington to California. 



Specimens examined: S«'attle, /*i/)fr, July 4, 1897; Smith 1032. 

 Zonal distribution: Humid Transition. 



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

 Type ixxjality: Sitka. 



Range: Alaska to California and Colorado. 



Specimens examined: Clallam County, Elmer 2735; Olympic Mountains, Fleit 827; 

 Mount Rainier, Piper 1037; Allen 272, 27^; Smith, August, 1890, Mount Stuart, Elmer 1131 ; 

 Cascade Mountains, 49°, Lj/aZ/ in 1860; Skamania County, 5uX:s(Zor/'2042; Flett 1376; Klicki- 

 tat River, Flett 1417; Wenache Region, Bramkgee 676; Stevens Pa.ss, Whited, August 27, 

 1901 ; Tieton River, Cotton 438; Skagit Pa.ss, Ixike <fc Hull 405; Bridge Creek, Elmer 650; 

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



Zonal distribution: Arctic. 



29a. Juncus mertensianus filifolius Suksdorf, Deutsch. 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. 



Jjeaves 10 to 12 mm. broad; perianth brown, 3 to 3.5 mm. long 1. J. glalirafum. 



Jjeaves 6 to 8 or 10 ram. broad; perianth 1.5 to 2.5 long. 



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

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



brown, cllip.soid : 2. J. parvijlorum. 



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



yellow constricted at each 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. sjncatum. 

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



