PIPEE FLORA OF THE STATE OF WASHINGTON. 387 



Specimens examined: Montesano, Heller 3885; Sumas Prairie, Lyall in 1858; upper 

 Nisqually Valley, Allen 126; Columbia River, latitude 46° to 49°, Lydl in 1860; Lake 

 Chelan, Lake <fe Hull 445; Pullman, Pi-per 1871; Blue Mountains, Pifer, July, 1896; Wa- 

 wawai. Piper 3817, 3816; without locality, Vasey 215, 216; without locality. Cooper 1854; 

 Spokane, Kreager 554; Clallam County, Elmer 2661. 



Zonal distribution: Transition and Upper Sonoran. 



CEANOTHTJS. 



Leaves opposite, dentate; procumbent shrub 1.6'. proatratus. 



Leaves alternate; erect shrubs. 



Evergreen; leaves varnished 2. C. velutinus. 



Deciduous; leaves serrate; flowers white 3. C. sanguineus. 



Deciduous; leaves subentirc; flowers usually blue. 4. C. integerrimus. 



1. Ceanothus prostratus Benth. PI. Hartw. 302. 1848. 

 Type locality: " In montibus Sacramento, " California. 

 Range: Washington to California. 



Specimens examined: Falcon Valley, Sulcsdorf 644, 343; Klickitat Valley, Howell, 

 May, 1878; Klickitat County, Brandegee 693. 



2. Ceanothus velutinus Dougl.; Hook. Fl. Bor. Am. 1: 125. 1830. Sticky Laurel. 

 Type locality: '"Subalpine hills near the source of the Columbia; and at the Kettle 



Falls." Collected by Douglas. The latter locality is in Stevens County, Washington. 



Range: Washington to California, Colorado, and Dakota. 



Specimens examined: Wenache Mountains, Whited 1109; Cedar Mountains, £'Zmer 800; 

 Tacoma, Flett 173; Falcon Valley, Sulcsdorf 962; Clealum, Henderson, June, 1892; Whited 

 406; Peshastin, Sandberg & Leiberg 477; Kettle Falls, Douglas; Kamiak Butte, Sand- 

 berg, Heller & MacDougal 501 ; Columbia River, Lyall in 1860; without locality, Vasey 221 ; 

 Box Canyon, Kreager 387; Clealum Lake, Cotton 859. 



Zonal distribution: Transition. 



The Sandberg, Heller, & MacDougal specimen has been published as C. velutinus laevi- 

 gatus Torr. & Gr.,a but it is better referred to the species. 



3. Ceanotlius sanguineus Pursh, Fl. 1: 167. 1814. Buckbrusii. 

 Ceanothus oreganus Nutt.; Torr. & Gr. Fl. 1 : 265. 1838. 



Type locality : " Rocky Mountains on the banks of the Missouri. " Collected by Lewis. 



Range: British Columbia to Idaho and California. 



Specimens examined: Olympia, Henderson, May, 1892; Nisqually Valley, ^Sen 111; 

 Wenache Mountains, Whited, June23, 1901 and 1233; Falcon Valley, Su^sc^or/ 107 ; Manor, 

 Piper, July 14, 1899; Vancouver, Piper, July 14, 1899; Trout Lake, FleU 1208; Cascade 

 Mountains, latitude 49°, Lyall; Nason Creek, Sandberg cfc Leiberg 628; Kamiak Butte, 

 Piper, July 20, 1899; Blue Mountains, Lalce & Hull, July, 1892; Easton, Whited 403; 

 Clallam County, Elmer 2659, 2660. 



Zonal distribution: Transition. 



The actual type specimen of this species is probably the sheet from the Lambert Her- 

 barium, now in the Philadelphia Academy of Sciences. This is labeled "Ceanothus atro- 

 purpureus. Near the foot of the Rocky Mountains on Collins Creek, June 27, 1806. " Collins 

 Creek is in Idaho, now known as Lolo Creek. 



4. Ceanothus integerrimus Hook. & Arn. Bot. Beech. Voy. 329. 1839-40. 

 Type locality: California. 



Range: Washington to California. 



Specimens examined: West Klickitat County, Sulcsdorf 10; l)alles [on the Washington 

 side?] Lyall, Suckley; Bingen, Piper, September, 1903. 



aContr. Nat. Herb. 3: 218. 1895. 



