196 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 



Flowers erect, each stiginent bearing a gland at base Zygadenus (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). 



^ VERATRTJM. False hellebore. 



Flowers green; panicle drooping 1. V. viride. 



Flowers whit«; panicle erect. 



Terniinnl branch of the panicle much elongated 2. V. caudatuin. 



Terminal branch of the panicle rather short 3. F. califomicuin. 



1. Veratnim viride Ait. llort. Kew 3: 422. 1789. Green hellebore. 

 Veratrum lohdianum eschscholzianum Roem. & Schult. Syst. 7: IflM. 1830. 

 Veratrurn eschschoUzii Gray, Ann. Lye. N. Y. 4: 119. 1837. 



Type uxjality: North America. 



Range: Alaska to New Brunswick southward to Washington, Minnesota, and Georgia. 



Specimens examined: Clallam County, Elmer 2rA)\ ; Cascade Mountains, latitudt^ 49°, 

 Lyall in 1860; Mount Rainier, Piper, August, 1895; Skamania County, Sahsdoif 213; 

 Mount Ad&ma, SiJcudorf H5; 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. 1899r 



Type locality: "In wet meadows at Montesano, Chehalis County, Washington." 

 Collected by Heller. 



Range: Western Washington. 



Specimens examined: Montesano, Heller -1013; S«!attle, Pi])er 1101; Chehalis River, 

 iMmb 1236. 



2ioNAL distribution: Humid Transition. 



This may be merely a form of V. califomicum. Durand, but the plant is somewliat diderent 

 in habit. 



3. Veratrum califomicum Durand, Journ. Acad. Phila. 3: 103. 1854. 



White hellebore. Plate XX. 



Veratrum speciosum Rydberg, Bull. Torr. Club 27: 531. 1900. 



Type locality: California. Collected by Pratt. 



Range: Washington to California, Colorado, and Montana. 



Specimens examined: Mount Adams, Suksdorf 65; Falcon Valley, Suksdorf 174; 

 North Fork Atanum, Henderson, August 2, 1892; Peshastin, Sandherg <£• Leiherg 518; 

 Wenache, Whited; Palouse, Hemlerson, July 15, 1892; Pullman, Piper; without locality, 

 Vasey 99; Mount Carlton, Kreager 263. 



2^)NAL distribution: Arid Transition. 



Veratrum califomicum Durand is described as having petioled leaves, Iwt the type 

 ijjx'cimen 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 locality: "Sheh-Shooh Lake, Alaska." 



Range: Alaska to Oregon and Montana. 



Specimens examined: Clallam County, Elmer 2504; Olympic Mountains, Piper 2242 

 Cascade Mountains, latitude 49°, LyaU in 1859; Mount Rainier, Piper 2133; Flett 291 

 Tatoosh Mountains, Allen 274; Olympia, Kincaid, July 2, 1896; Mount Stuart, Elmer 1227 

 Mount Adams, Suksdorf, August 31, 1886; Falcon Valley, Suksdorf 516; Lake Wenache, 

 Sandherg cfc Leiherg 629; Horseshoe Basin, Lake cfc Hull 610; Bridge Creek, Elmer. 



