1916] 
GREENMAN—MONOGRAPH OF SENECIO 133 
or less attenuate; inflorescence a terminal few to many-headed 
corymbose eyme; heads 8 to 10 mm. high, radiate; involucre 
eampanulate, ealyeulate; bracts of the involucre (13-) 21, 
linear, acute, 6 to 8 mm. long, glabrous except at the penicillate 
tip; ray-flowers 10 to 13, rays pale yellow; disk-flowers numer- 
ous; achenes glabrous. 
Distribution: Saskatehewan, Alberta and British Columbia, 
south to New Mexico and California. 
Specimens examined: 
Saskatchewan: District of Assiniboia, 1 Aug., 1901, Wil- 
liamson (C. S. Williamson Herb.). 
Alberta: Laggan, Rocky Mountain Park, 13 July, 1904, 
Macoun 65016 (Gray Herb. and Geol. Surv. Canada Herb.); 
trail to Burgess Pass, Yoho Valley, 28 Aug., 1904, Macoun 
65017 (Gray Herb. and Geol. Surv. Canada Herb.); Lake 
Louise, alt. 1830-2135 m., 17 July, 1906, Brown 559 (Phil. 
Acad. Nat. Sci. Herb.); near Banff, 6 July, 1891, Macoun 
(U. S. Nat. Herb. 232000); Banff, alt. 1340 m., 7 July, 1907, 
Butters Ё Holway 66 (U.S. Nat. Herb.) ; in swampy places, 
summit of South Kootenai Pass, 9 Aug., 1881, Dawson 14768 
(Geol. Surv. Canada Herb.); in wet places, North Kootenai 
Pass, 28 July, 1883, Dawson 14815 (Geol. Surv. Canada 
Herb.). 
British Columbia: Burgess Trail, vicinity of Field, alt. 
1545-1830 m., 29 June and 16 July, 1906, Brown 518 (Phil. 
Acad. Nat. Sci. Herb.) ; in woods, Emerald Lake, alt. 1310 
m., 4 Aug., 1904, Petersen 148 (Gray Herb., U. S. Nat. Herb., 
Phil. Acad. Nat. Sci. Herb., and Mo. Bot. Gard. Herb.) ; 
Bonaparte River, 18 June, 1889, Macoun (U. S. Nat. Herb. 
219791), in part; Mount St. Thomas, between Kettle and Co- 
lumbia Rivers, 8 Aug., 1902, Macoun 64994 (Gray Herb. and 
Geol. Surv. Canada Herb.); grassy thickets, Guichon Creek, 
8 July, 1888, Dawson 14769 (Geol. Surv. Canada Herb.) ; damp 
places, between North Thompson and Bonaparte Rivers, alt. 
1220 m., 18 June, 1889, Macoun 14770 (Geol. Surv. Canada 
Herb.), in part; Trail, 9 June, 1902, Macoun 64993 (Geol. 
Surv. Canada Herb.). 
