522 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 



OROBANCHE. 



Flowers pedicellate. 



Stems low, stout; anthers woolh' 1. 0. comosa. 



Stems taller; anthers glabrous or hairy . - . 2. 0. calif ornica. 



Flowers subsessile; anthers glabrous or nearly so. 



Stems tuber-like at base, branched above 3. 0. pinonim. 



Stems not tuber-like at base, usually simple 4. 0. huloriciana. 



1. Orobanche comosa Hook. Fl. Bor. Am. 2: 92. 1838. 

 AphyUon comoxum A. Gray, Bot. Cal. 1: 584. 1876. 

 Phelipoea comosa A. Gray, Pac. R. Rep. 12- : 54. 1860. 



Type locality: "Banks of the Columl>ia." Collected by Douglas, by Scouler, and l)y 

 Gairdner. 



Range: Washington to California. 



Specimens examined: Whidby Island, (rart^rifr 358; Y&lconYaMej, SvJcsdorf 82; with- 

 out locality, Brandegee 1029; Rock Island, Sandherg cfc Leiberg 4S6; Chelan, Elmer 506; 

 Grand Coulee, Lal-e (& Hull 778; Soap Lake, McKay 3; Squaw Creek, Cofton 876; Rattle- 

 snake Mountains, Cotton 764; Flat Top Island, Laurence 103; Sucia Island, Flett 2755. 



Zonal distribution: Upper Sonoran and Transition. 



2. Orobanche calif or.iica Cham. & Schlecht. Linnaea 3: 134. 1828. 

 AphyUon caiifornica A. Gray, Bot. Cal. 1: 584. 1876. 



Type locality; "E vicinia portus St. Francisco," California. 



Range; Washington to California and Nevada. 



Specimens examined: Walla Walla region, Brandegee 1030. 



3. Orobanche pinorum Geyer; Hook. Kew. Journ. Bot. 3: 297. 1851. 

 AphyUon pinetorurn A. Gray, Bot. Cal. 1: 585. 1876. 



Type locality: "Top of high mountains near St. Joseph, Coeur d'Aleine country. 

 Growing on the roots of Abies balsamea," Idaho. Collected by Geyer. 



Range; Eastern Washington and Idaho. 



Specimens examined: Columbia Valley, latitude 46° to 49°, LyaU, June, 1860; lone, 

 Ereager 403. 



Zonal distribution: Arid Transition. 



4. Orobanche ludoviciana Nutt. Gen. 2: 58. 1818. 

 AphyUon ludoricianum A. Gray, Bot. Cal. 1: 585. 1876. 



Type locality: "In sandy alluvial soils around Foit ]\^"andan," North Dakota. 



Range; Washington to Saskatchewan, Texas, and California. 



Specimens examined: Rock Island, Sandherg d' Leiperg 436; west Klickitat County, 

 Suksdorf 2248; Wawawai, Piper 2842; Lake Chelan, Gorman 720; Craigs Ferry, Coiion 

 1343; Granddalles, Wesigate in 1905; "on roots of Psorclea verrucosa in the light drift sand 

 desert at the mouth of Lewis and Walla Walla rivers," Geyer. 



Zonal distribution; Upper Sonoran. 



BOSCHNIAKIA. 



1. Boschniakia strobilacea A. Gray, Pac. R. Rep. 4: 118. 18.56. 



Type locality: " Dr}- and rocky hills South Yuba," California. 



Range; Washington to California in the coast region. 



Specimens examined; Cape Foulweather, Howell; near Union City, Piper in 1890; 

 Bitter Lake, near Seattle, Piper 1127; Springfield, Bobbins, May 10, 1897. 



The common host plants are Gaultheria shallon and Arctostapinjlos tomentosa. 



Zonal distribution; Humid Transition. 



