1918] 
GREENMAN— MONOGRAPH OF SENECIO 69 
Distribution: British Columbia, south to Utah and Nevada. 
Specimens examined: 
British Columbia: Burgess Trail, vicinity of Field, alt. 
1520-1825 m., 16 July, 1906, Stewardson Brown 510 (Phil. 
Acad. Nat. Sci. Herb.) ; Emerald Lake, Yoho Valley, 27 Aug., 
1904, Macoun (Gray Herb. and Geol. Surv. Canada Herb. No. 
65015). 
Oregon: near top of Hasbrook Gulch, alt. 1520 m., 15 July, 
1897, Sheldon 8570 (U. S. Nat. Herb. and Mo. Bot. Gard. 
Herb.). 
Utah: Wasatch Mountains, alt. 2130 m., June, 1869, Watson 
669 (U. S. Nat. Herb.); Alta, Wasatch Mountains, alt. 3350 
m., 31 July, 1879, Jones 1125 (Berlin Herb., fragment and 
tracing in Gray Herb.) ; Salt Lake City, alt. 1310 m., 15 July, 
1880, Jones 1996 (U. S. Nat. Herb. and Univ. Chicago Herb. 
at Field Mus. No. 252611); near divide, head of American 
Fork Сайоп, 29 July, 1885, Leonard 143 (N. Y. Bot. Gard. 
Herb.), түре; near Midway, Wasatch Co., 6 July, 1905, Carl- 
ton Ё Garrett 6701 (U. S. Nat. Herb.). 
Nevada: East Humboldt Mountains, alt. 2740 m., Aug. 
1868, Watson 668 (Gray Herb.). 
This species has many characters in common with the sec- 
tion Aurei, but on account of the more or less persistent white 
tomentum on the stem, in the inflorescence, and on the leaf- 
surface it is placed rather in the section Tomentosi. 
116. S. tomentosus Michx. Fl. Bor. Am. 2: 119. 1803; Ell. 
Sk. 2 : 329. 1824; Torr. & Gray, Fl. N. Am. 2: 443. 1843, excl. 
var. 8.: DC. ро. 6 : 433. 1837, mainly; Gray, Syn. Fl. N. 
Am. 1?: 390. 1884, and ed. 2, 1886; Chapman, Fl. Southern U. 
S. 245. 1860, and ed. 2, 1889; m ed. 3, 266. 1897; Britton & 
Brown, Ill. FI. 8:477, a 4038. 1898, E ed. 2, 543, fig. 4622. 
1913; Bergen, Fl. Northern and Central States, 232. 1901; 
Britton, Manual, 1026. 1901, and ed. 2, 1905; Greenm. Monogr. 
Senecio, I. Teil, 24. 1901, and in Engl. Bot. Jahrb. 32: 20. 
1902; Small, Fl. Southeastern U. S. 1304. 1903, and ed. 2, 
1913; Greenm. in Gray's Manual, ed. 7, 855. 1908. 
