196 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
Flowers erect, each segment bearing a gland at base... ZyGaADENUs (p. 197). 
Flowers nodding; perianth segments glandless. .... .. -- STENANTHIUM (p. 197.). 
Anthers 2-celled; leaves rigid or equitant. 
Leaves equitant; pedicels bracteolate................-.-. ToFiELDA (p. 196). 
Leaves not equitant, harsh and rigid; pedicels naked ._....- XEROPHYLLUM (p. 197). 
VERATRUM. [FALSE HELLEBORE. 
Flowers green; panicle drooping. ......-...-.-.---------.--------- 1. V. wiride. 
Flowers white; panicle erect. 
Terminal branch of the panicle much elongated _............--- 2. V. caudatum. 
Terminal branch of the panicle rather short ....-.---.-.------- 3. V. californicum. 
1. Veratrum viride Ait. Hort. Kew 3: 422. 1789. GREEN HELLEBORE. 
Veratrum lobelianum eschscholzianum Roem. & Schult. Syst. 7: 1555. 1830. 
Veratrum eschscholtzii Gray, Ann. Lyc. N. Y. 4: 119. 1837. 
Type Loca.iry: North America. 
Rance: Alaska to New Brunswick southward to Washington, Minnesota, and Georgia. 
SPECIMENS EXAMINED: Clallam County, Elmer 2501; Cascade Mountains, latitude 49°, 
Lyall in 1860; Mount Rainier, Piper, August, 1895; Skamania County, Suksdorf 213; 
Mount Adams, Suksdorf 85; near Skagit Pass, Lake & Hull 609; Bridge Creek, Elmer 665; 
Blue Mountains, Piper, July, 1896. 
ZONAL DISTRIBUTION: Hudsonian. 
2. Veratrum caudatum Heller, Bull. Torr. Club 26: 588. 1899. 
Tyre Locauiry: ‘In wet meadows at Montesano, Chehalis County, Washington.” 
Collected by Heller. 
Rance: Western Washington. 
SPECIMENS EXAMINED: Montesano, Heller 4013; Seattle, Piper 1101; Chehalis River, 
Lamb 1236. 
ZONAL DISTRIBUTION: Humid Transition. 
This may be merely a form of V. californicum Durand, but the plant is somewhat different 
in habit. 
3. Veratrum californicum Durand, Journ. Acad. Phila. 3: 103. 1854. 
WHITE HELLEBORE. PLATE XX. 
Veratrum speciosum Rydberg, Bull. Torr. Club 27: 531. 1900. 
Type Locauiry: California. Collected by Pratt. 
Rance: Washington to California, Colorado, and Montana. 
SPECIMENS EXAMINED: Mount Adams, Suksdorf 65; Falcon Valley, Suksdorf 174; 
North Fork Atanum, Henderson, August 2, 1892; Peshastin, Sandberg & Leiberg 518; 
Wenache, Whited; Palouse, Henderson, July 15, 1892; Pullman, Piper; without locality, 
Vasey 99; Mount Carlton, Kreager 263. 
ZONAL DISTRIBUTION: Arid Transition. 
Veratrum californicum Durand is described as having petioled leaves, but the type 
specimen clearly shows that the so-called petiole is only a part of the sheathing base. 
. TOFIELDIA. 
1. Tofieldia intermedia Rydberg, Bull. Torr. Club 27: 528. 1900. 
Type Loca.iry: ‘‘Sheh-Shooh Lake, Alaska.” 
Rance: Alaska to Oregon and Montana. 
SPECIMENS EXAMINED: Clallam County, Elmer 2504; Olympic Mountains, Piper 2242; 
Cascade Mountains, latitude 49°, Lyall in 1859; Mount Rainier, Poper 2133; Flett 291; 
Tatoosh Mountains, Allen 274; Olympia, Kincaid, July 2, 1896; Mount Stuart, #lmer 1227: 
Mount Adams, Suksdorf, August 31, 1886; Falcon Valley, Suksdorf 516; Lake Wenache, 
Sandberg & Leiberg 629; Horseshoe Basin, Lake & Hull 610; Bridge Creek, Elmer. 
