184 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
The Falcon Valley specimen was the basis for the inclusion of Juncus chlorocephalus 
Engelm. in Suksdorf’s list. 
27. Juncus ensifolius Wiks. Kongl. Vet. Akad. Handl. 2: 274. 1823. 
Juncus xiphioides triandrus Engelm. Trans. St. Louis Acad. 2: 482. 1868. 
Juncus xiphioides macranthus Engelm. loc. cit. 
TyPE LocaLity: Not ascertained. 
Rance: Alaska southward in the mountains to California. 
SPECIMENS EXAMINED: Montesano, //eller 3968; Seattle, Piper 1038; Skamania County, 
Flett 1388; Bridge Creek, Elmer 645; Lake Chelan, Lake & Hull 360; Nason City, Sandberg & 
Letberg 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. FI. Bor. Am. 2: 191. 1840. 
Juncus xiphioides montanus Engelm. Trans. St. Louis Acad. 2: 481. 1868. 
Juncus saximontanus A. Nelson, Bull. Torr. Club. 29: 401. 1902. 
Tyre Loca.ity: ‘Sources of the Columbia River, in the Rocky Mountains.” 
Rance: British Columbia to Oregon and Idaho. 
SPECIMENS EXAMINED: Olympia, Henderson, October 2, 1892; Wenache, Whited 82, 207 ; 
Ellensburg, Whited 710; Blue Mountains, Lake & Hull 376; Silver Lake, Henderson, July 13, 
1892; North Yakima, Watt, August, 1895. 
28. Juncus oxymeris Engelm. Trans. St. Louis Acad. 2: 483. 1868. 
TYPE LocaLiry: “Sacramento Valley, Cal.” Collec ‘ted by Hartweg. 
Rance: Washington to California. 
SPECIMENS EXAMINED: Seattle, Piper, July 4, 1897, Smith 1032. 
ZONAL DISTRIBUTION: Humid Transition. 
29. Juncus mertensianus Bong. Mem. Acad. St. Petersb. VI. 2: 167. 1832. 
TYPE Loca.ity: Sitka. 
Rance: 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°, Lyall in 1860; Skamania County, Suksdorf 2042; Flett 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, Deutsch. Bot. Monatss. 19: 92. 1901. 
Type Loca.ity: ‘Skamania County,’’ Washington. 
JUNCOIDES. Woop rusu. 
Flowers in clusters of 2 to 3 or solitary in an open panicle. 
Leaves 10 to 12 mm. broad; perianth brown, 3 to 3.5 mm. long.... 1. J. glabratum. 
Leaves 6 to 8 or 10 mm. 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, ellipsoid ......-.-.--- seceeeeee. 2d. parviflorum. 
Flowers and capsules dark brown; ; leaves thick, dull; ‘seeds 
yellow constricted at each end. ............ 22.2... 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. d. campestre, 
