36 



CIRCULAR 884, U. S. DEPARTMENT OF AGRICULTURE 



Plants — continued 



Perennial forbs (cultivated) : 



Carrot, garden Daucus carota sativa 



Sweetpotato Ipomoea batatas 



Shrubs and trees: 



Aspen, quaking Populns tremuloides 



Pines Firms spp. 



Sagebrush Artemisia spp. 



RODENTS 



Ground squirrel, Oregon Citellus oregonus 



Meadow mouse Microtus spp. 



Whitefooted mouse Perornyscus spp. 



Pocket gopher: 



black Thomomys monticola niger 



brown T. talpoides wallowa 



Columbia T. talpoides columbianus 



Dalles T. talpoides quadrat us 



Deschutes T. monticola nasicus 



Heller's T. monticola helleri 



Humboldt Bav T. bottae detumidus 



Mazama T. monticola mazama 



Nevada T. townsendii nevadensis 



Oregon T. monticola oregonus 



Townsend's T. townsendii townsendii 



West coast T. monticola hesperus 



white-toothed T. bottae leucodon 



Willamette Valley T. bulbivorus 



^T U. S. GOVERNMENT PRINTING OFFICE: 1951-9 



IS6J8T100 



vmm 

 3 1 -1 



For sale by the Superintendent of Documents, U. S. Government Printing Office 

 Washington 25, D. C. - Price 15 cents 



