204 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
4, Sisyrinchium idahoense Bicknell, Bull. Torr. Club 26: 445. 1899. 
Type LocaLity: Kootenai County, Idaho. Collected by Leiberg. 
Rance: British Columbia to Idaho and California. 
SPECIMENS EXAMINED: Montesano, Heller 3883; Prosser, Henderson 2543; Ellensburg, 
Whited 453; Pullman, Piper 1684; Hull 608; Elmer 213, 825; Wenas, Griffiths & Cotton 78; 
Satus, Cotton 1119; Vancouver, Piper 4938. 
ZONAL DISTRIBUTION: Arid Transition. 
This species was formerly considered the same as the eastern S. mucronatum Michx., 
under which name several references to our flora occur. 
’ §. Sisyrinchium segetum Bicknell, Bull. Torr. Club 26: 449. 1899. 
Type LocaLity: Seattle, Washington. 
Rance: Washington and Oregon west of the Cascade Mountains. 
SPECIMENS EXAMINED: Humptulips, Lamb 1176; Admiralty Head, Piper, May 27, 1898; 
Seattle, Piper, May, 1892; Meany 196; Coupeville, Gardner 283; Tacoma, Flett 187; 
Olympia, Henderson 2542. 
ZONAL DISTRIBUTION: Humid Transition. 
Very near S. idahoense, but perhaps distinct by its narrower and thinner leaves and 
stems. 
HYDASTYLUS. 
Pedicels 10 to 15 mm. long; leaves 2 to 5mm. broad................--- 1. A. brachypus. 
Pedicels 15 to 20 mm. long; leaves 1 to 3 mm. broad...........-.----- 2. H. borealis. 
These two supposed species are very similar and probably not distinct. Heretofore they 
have been referred to Sisyrinchium californicum Ait., a species that does not occur so far 
north. More material of these two forms is necessary to determine their status. 
1. Hydastylus brachypus Bicknell, Bull. Torr. Club 27: 379. 1900. 
Type Locatity: “Oregon.” Collected by E. Hall. 
Rance: Coasts of Oregon and Washington. 
SPECIMENS EXAMINED: Oyhut, Lamb 1251; Westport, Henderson, June, 1892; Gran- 
ville, Conard 410. 
ZONAL DISTRIBUTION: Humid Transition. 
2. Hydastylus borealis Bicknell, Bull. Torr. Club 27: 378. 1900. 
Type LocaLity: Whatcom County, Washington. Collected by Suksdorf. 
Rance: Coast of Washington and Vancouver Island. 
SPECIMENS EXAMINED: Whatcom County, Gardner 411; Suksdorf 1004. 
ZONAL DISTRIBUTION: Humid Transition. 
OLSYNIUM. 
1. Olsynium grandiflorum (Dougl.) Raf. New Fl. Am. 1: 72. 1836. 
Sisyrinchium grandiflorum Dougl. Bot. Reg. 16: t. 1364. 1830. 
Type Locauity: ‘Near the Great [Celilo] Falls of the river Columbia.’”’ Collected by 
Douglas in 1826. 
Rance: British Columbia to California and Nevada. 
SPECIMENS EXAMINED: Whidby Island, Gardner 279; between Ellensburg and Wenache, 
W hited 58; North Yakima, Mrs. Steinweg in 1894; Klickitat River, lett 1112; Hangman 
Creek, Sandberg & Leiberg 34; Pullman, Moore, May, 1893; Flmer 74; Piper, April, 1894, 
June, 1893; Wenache Mountains, Griffiths & Cotton 1383; Spokane, Piper. 
