610 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 



Range: British Columbia to Idaho and California. 



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

 79°, Lyall in 1859; Sumas Prairio, latitude 49°, Lyall in 1858; Seattle, Pij)er, August, 

 1892; Mount Rainier, Pii>er 2152; Beaver Creek, Whited 24; Nason Creek, Sandberg db 

 Leiberg 695; Conconnullv, WhUed 1315; west Klickitat County, Suksdorf 143, 144; 

 Ellensburg, WhiUd 660; Blue Mountains, Horner 330. 



Zonal distribution: Transition. ♦ 



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



6. Carduus remotifolius HiK)k. Fl. Bor. Am. 1: 302. 1833. 



Cnicus remolifolius A. Gray, Prtx-. Am. Acad. 10: 47. 1875. 



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



Type uk'ality: "In the valley of the Columbia." Collected by Douglas. 



Range: Washington to California. 



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

 574; Yakima region. Brandtgee 922; Na.son Creek, Sandberg tfc Leiberg 626; Fourth Plain, 

 Piper, July 10, 1899; Cape Horn, Pi/xr 4963. 



Zonal distribction: Humid Transition. 



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

 Vnicusfoliosus Gr&y, Prtn-. Am. Acad. 10: 40. 1874. 

 Cirsium fdiosum IX\ Prod. 6: 654. 1837. 



Type ux-ality: "Prairies of the Rocky Mountains." Collected by Drummond. 

 Range: W^ashington and Oregon to AllnTta. 



Specimens examined: Pullman, Pij>er 1822 and June, 1893; Henderson 4275; without 

 liK-ality, Vasey Alb. 

 Zonal distribution: Arid Transition. 



7. Carduua ochrocentruB (A. Gray) Greene, Proc. Acad. Phila. 1802: 336. 1893. 

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



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

 Range: Washington to Califoniia and Texas. 

 Specimens examined: Blue Mountains, Piper in 1896. 



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

 Cnicus undulatus A. Gray, Phm-. Am. Acad. 10: 42. 1875. 

 Cirsium douqlassii 1X_\ Prod. 6: ()43. \Kil. 



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



Type locality: "On the calcareous i.slands of Luke Huron and on the plains of upper 

 Louisiana." 



Range: Washington to Canada, south to New Mexico. 



Specimens examined: Klickitat River, Suksdorf 142; Columbia Valley, Lyall in 1860; 

 Yakima County, Henderson 221 A, Wenache, Whited {il, 1173, 127!; Spokane, Pt/)er, July, 

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

 712 



Zonal distribution: Upper S<jnoran. 



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 outline, pinnatifid into 3 to 7 pairs 

 of entire or toothed lobes, early becoming green and glabrous above, persistently white- 

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

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

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

 the innermost prickiy-pomted, eacli bearing an oblong or linear glandular spot near the 

 tip; innermost aitenuate-atuminate and feebly armed or rauticous, flowers yellowish 



