204 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM, 



4. Sisyrinchium idahoense Bifknoll, Bull Torr. Clul) 26: 44.5. 1899. 

 Type locality: Kootenai County, Idalio. Collected by Loit>erg. 

 Kange: British Columbia to Idaho and California. 



Specimens examined: Montesano, Heller 3883; Pressor, Ilenderson, 2.543; Ellensburg, 

 Whited 453; Pullman, Pi/wr 1684; Hull 608; Elmer 213, 825; Wcn&s, Griffiths ct Cotton 78; 

 Satus, Cotton 1119; Vancouver, Piper 4938. 



Zonal distribution: Arid Transition. 



Tliis species was formerly considered the same as the eastern S. mucronaturn Mielix., 

 under whicli name several references to our flora occur. ' 



5. Sisyrinchium segetum Bickm-ll, Bull. Torr. Club 26: 449. 1899. 

 Type locality: Seattle^ Washington. 



Range: Washington and Oregon west of the Cascade Mountains. 



Specimens examined: Humptulips, Lnmh 1176; Admiralty Head, Piper, May 27, 1898; 

 Seattle, Piper, May, 1892; Meany 196; Coupeville, Gardner 283; Tacoma, Flett 187; 

 Olynipia, Henderson 2542. 



Zonal distribution: Humid Transition. 



Very near S. idahoense, but perhaps distinct by its narrower and tliinncr leaves and 

 stems. 



HYDASTYLUS. 



Pedicels 10 to 1.5 mm. long; leaves 2 to 5mm. broad 1. H. bracJtypvs. 



Pedicels 15 to 20 mm. long; leaves 1 to 3 mm. broad 2. H. borealts. 



These two supposed species are very similar and probabh' not distinct. Heretofore they 

 have been referred to Sisyrinchium californicum Ait., a species that does not occur so lar 

 nortlL More material of these two forms is necessary to determine their status. 



1. Hydastylus brachypus Bicknell, Bull. Torr. Club 27: 379. 1900. 

 Type locality: "Oregon." Collected hx E. Hall. 



Range: Coasts of Oregon and Washington. 



Specimens examined: Oyhut, Lamh 1251; Westport, Henderson, June, 1892; Gran- 

 ville, Canard 410. 



Zonal distribution: Humid Transition. 



2. Hydastylus borealis Bicknell, Bull. Torr. Club 27: 378. 1900. 

 Type locality: Wiiatcom County, Washington. Collected by Suksdorf. 

 Range: Coast of Washington and Vancouver Island. 



Specimens examined: Whatcom County, GarcZn^r 411; Sulsdorf 1004. 

 Zonal distribution: Humid Transition. 



OLSYNIUM. 



1. Olsynium grandifioruni (Dougl.) Raf. New Fl. Am. 1: 72. 1836. 



Sisyrinchii/iH yrandifornm Dougl. Bot. Reg. 16: t. 1364- 1830. 



Ty'PE locality: "Near the Great [Celilo] Falls of the river Columbia." Collected by 

 Douglas in 1826. 



Range: British CohiTiibia to California and Nevada. 



Specimens examined: Whidby Island, Gardner 279; between Ellensburg and Wenache, 

 Whited 58; North Yakima, Mrs. Steinirey in 1894; Klickitat River, Flett 1112; Hangman 

 Cfeek, Snndhery A Leihery 34: Pullman, Moore, May, 1893: Fhner 74; Piper, April, 1894, 

 .lune, 1893: Wenache Mountains, Griffiths cfc Cotton 133; Spokane, Piper. 



