610 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM 
Rance: British Columbia to Idaho and California. 
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, Piper 2152; Beaver Creek, Whited 24; Nason Creek, Sandberg & 
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 formerly used by the natives as food. 
5. Carduus remotifolius Hook. Fl. Bor. Am. 1: 302. 1833. 
Cnicus remotifolius A. Gray, Proc. Am. Acad. 10: 47. 1875. 
Cirsium remotifolium DC. Prod. 6: 655, 1837. 
Type Locauity: “Inthe valley of the Columbia.” Collected by Douglas. 
Rance: Washington to California. 
SPECIMENS EXAMINED: West Klickitat County, Suksdorf 145; Mount Adams, Suksdorf 
574; Yakima region, Brandegee 922; Nason Creek, Sandberg & Leiberg 626; Fourth Plain, 
Piper, July 10, 1899; Cape Horn, Piper 4963. 
ZONAL DISTRIBUTION: Humid Transition. 
6. Carduus foliosus Hook. Fl. Bor. Am. 1: 303. 18833. 
Cnicus foliosus Gray, Proc. Am. Acad. 10: 40. 1874. 
Cirsium foliosum DC. Prod. 6: 654. 1837. 
Type Loca.ity: “Prairies of the Rocky Mountains.” Collected by Drummond. 
Rance: 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. Phila. 1892: 336. 1893. 
Cirsium ochrocentrum A, Gray, Pl. Fendl. 110. 1849. 
Type Locauiry: ‘Mountain sides around Santa Fe,’’ New Mexico. 
Rance: Washington to California and Texas. 
SPECIMENS EXAMINED: Blue Mountains, Piper in 1896. 
8. Carduus undulatus Nutt. Gen. 2: 130. 1818. 
Cnicus undulatus A. Gray, Proc. Am. Acad. 10: 42. 1875. 
Cirsium douglassii DC. Prod. 6: 643. 1837. 
Cirsium undulatum Spreng. Syst. 3: 374. 1826. 
Type Locatiry: “On the calcareous islands of Lake Huron and on the plains of upper 
Louisiana.” 
Rance: Washington to Canada, south to New Mexico. 
SPECIMENS EXAMINED: Klickitat River, Suksdorf 142; Columbia Valley, Lyall in 1860; 
Yakima County, Henderson 2274, Wenache, Whited 91, 1173, 1271; Spokane, Piper, July, 
1896, Almota, Piper 1823; Wawawai, Hull, June, 1892: Rattlesnake Mountains, Cotton 
712 
ZONAL DISTRIBUTION: Upper Sonoran. 
9. Carduus palousensis sp. nov. 
Perennial, stems erect, usually loosely branched above, 30 to 90 em. bigh, 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 jong nearly naked peduncles, involucre hemispheric. its 
bracts firm, Closely imbricated m 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 
