610 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 



Range: British Columbia to Idaho and Cahfornia. 



Specimens examined: Montesano, Heller 4000, 3963; Cascade Mountains, latitude 

 79°, Lyall in 1859; Sumas Prairie, latitude 49°, Lyall in 1858; Seattle, Piper, August, 

 1892; Mount Rainier, Pifer 2152; Beaver Creek, Whited 24; Nason Creek, Sandberg <fc 

 Leiberg 695; Conconnully, Whited 1315; west Klickitat County, Suksdorf 143, 144; 

 Ellensburg, Whited 660; Blue Mountains, Horner 330. 



Zonal distribution: Transition. 



The roots of this species were formcily used by the natives as food. 



5. Carduus remotifolius Hook. Fl. Bor. Am. 1: 302. 1833. 

 C ulcus reiiioiifollus A. Gray, Proc. Am. Acad. 10: 47. 1875. 

 Cirsium remotifolium DC. Prod. 6: 655. 1837. 



Type locality: "In the valley of the Columl)ia." Collected by Douglas. 



Range: Wa.shington to California. 



Specimens examined: West Klickitat County, Sulcsdorf 145; Mount Adams, Suksdorf 

 574; Yakima region, Br<^ndegee 922; Nason Creek, Sandberg & Leiberg 626; Fourth Plain, 

 PilH-r, July 10, 1899; Cape Horn, Piper 4963. 



Zonal distribution: Humid Tiansition. 



6. Carduus foliosus Hook. Fl. Bor. Am. 1: 303. 1833. 

 C ulcus Joliosus Gray, Proc. Am. Acad. 10: 40. 1874. 

 Cirsium foliosum DC. Prod. 6: 654. 1837. 



Type locality: "Prairies of the Rocky Mountains." Collected by Drummond. 

 Range: Washington and Oregon to Alberta. 



Specimens examined: Pullman, Piper 1822 and June, 1893; Henderson 4275; without 

 locality, Vasey 475. 



Zonal distribution: Arid Transition. 



7. Carduus ochrocentrus (A. Gray) Greene, Proc. Acad. Philn. 1892: 336. 1893. 

 Cirsium ochrocntfruiH A. Gray, PI. Fendl. 110. 1849. 



Type locality: "Mountain sides around Santa Fe," New Mexico. 

 Range: Washington to California and Texas. 

 Specimens examined: Blue Mountains, Piper in 1896. 



8. Carduus undulatus Nutt. Gen. 2: 130. 1818. 



C ulcus utiduldtus A. Gray, Proc. Am. Acad. 10: 42. 1875. 



Cirsium douglassii IK-. Prod. 6: 643. 1837. 



Cirsium. undulatum Spreng. Syst. 3: 374. 1826. 



Type locality: "On the calcareous islands of Lake Huron and on the plains of upper 

 Louisiana." 



Range: Washington to Canada, south to New Mexico. 



Specimens examined; Klickitat River, Suksdorf 142; Columl)ia Valley, Lyall in 1860; 

 Yakima County , Henderson 2274, Wenache, Whited 91, 1173,127!, Spokane, Ptper, July, 

 1896; Almota, Piper 1823, Wawawai, Hull, June, 1892; Rattlesnake Mountains, Cotton 

 712 



Zonal distkibuiion. Upper Sonoran. 



9. Carduus palousensis sp. nov. 



Perennial, stems erect, usually loosely branched above, 30 to 90 cm. high, tomentose 

 when young, becoming glabrous; leaves lanceolate in outlme, pmnatifid into 3 to 7 pairs 

 of entire or toothed lol)es, early becoming green and glabrous above, persistently white- 

 woolly beneath, 5 to 15 cm. long, bearing but few prickles, the uppermost commonly smiple, 

 head 3 to 4 cm high, often on long nearly naked peduncles, involucre hemispheric, its 

 bracts firm, ilosely imbricated in several successively shorter ranks, not ciliolate, all but 

 the innermost prickly- pointed, each bearing an oblong or linear glandular spot near the 

 tip, innermost attenuate-acuminate and feebly armed or muticous, flowers yellowish 



