[Vor. 8 
148 ANNALS OF THE MISSOURI BOTANICAL GARDEN 
lower leaves petiolate, ovate-rotund, ovate-oblong to subobo- 
vate, 1 to 3.5 em. long, .5 to 2 em. broad, rounded to obtuse at 
the apex, minutely erenate to serrulate, subeordate to abruptly 
contracted to a cuneate base; petioles 1 to 6.5 em. long; inflo- 
rescence a few to many-headed corymbose всуше; heads 6 to 10 
mm. high, radiate; involuere campanulate, sparingly calyeu- 
late, tomentulose; bracts of the involucre 13 to 21, linear, 4 to 
6 mm. long; ray-flowers about 12, rays pale yellow; disk- 
flowers numerous; achenes glabrous. 
Distribution: mountains of New Mexico and Arizona. 
Specimens examined: 
New Mexico: Winsor’s Ranch, Pecos River National 
Forest, alt. 2500 m., 30 June, and 3 July, 1908, Standley 4058, 
4061, 4165 (U. S. Nat. Herb. and Mo. Bot. Gard. Herb.) ; 
marsh, Kingston, Sierra Co., alt. 2000 m., 25 May, 1904, Met- 
calfe 931 (U. S. Nat. Herb. and Mo. Bot. Gard. Herb.). 
Arizona: vicinity of Flagstaff, alt. 2135 m., 5 July, 1898, 
MacDougal 230 (Gray Herb. and Phil. Acad. Nat. Sci. Herb.), 
TYPE; San Francisco Mountains, 7 July, 1892, Тоитеу 663 
(Gray Herb. and U. S. Nat. Herb.) ; San Francisco Moun- 
tains, 21 Aug., 1889, Knowlton 64 (U. S. Nat. Herb.) ; Mt. 
Agassiz, coll. of 1884, Lemmon 38283 (Gray Herb.); near 
Kendrick Mountains, alt. 2000 m., 7 July, 1901, Leiberg 5663 
(U. S. Nat. Herb.) ; Cooley's Ranch, Navajo Co., 1 July, 1912, 
Goodding 1108 (U. S. Nat. Herb.). 
66. S. plattensis Nutt. Trans. Am. Phil. Soc. N. S. 7:413. 
1841; Britton & Brown, Ill. Fl. 3:478, fig. 4039. 1898, and ed. 
2, 043, fig. 4623. 1913; Heller, Cat. N. Am. Pl. 146. 1898, and 
ed. 2, 230. 1900; Rydb. Mem. N. Y. Bot. Gard. 1:445. 1900, and 
Bull. Torr. Bot. Club 27:185, pl. 6, fig. 14. 1900; Greenm. 
Monogr. Senecio, I. Teil, 24. 1901, and in Engl. Bot. Jahrb. 
32:20. 1902; Britton, Manual 1026. 1901, and ed. 2, 1905; Rydb. 
Fl. Colo. 396. 1906; Coulter & Nelson, Manual Cent. Rocky 
Mountains 581. 1909; Daniels, Univ. Mo. Studies, Sci. Ser. 
2:251. 1911. 
S. balsamitae Torr. in Nicollet’s Report, App. B, 153 [237]. 
1843, not Muhl. 
