[Vor. 5 
94 ANNALS OF THE MISSOURI BOTANICAL GARDEN 
corymbose many-headed cyme; heads 8 to 10 mm. high, mi- 
nutely calyculate, radiate; involuere campanulate; bracts of 
the involucre usually 13, narrowly lanceolate, 5 to 7 mm. long, 
acute, tomentose to nearly glabrous; ray-flowers 6 to 8, rays 
narrowly oblong, about 8 mm. long, 4—5-nerved, yellow; disk- 
flowers about 30; achenes glabrous. 
Distribution: mountains of New Mexico and Arizona. 
Specimens examined: 
New Mexico: Mogollon Mountains, alt. 2435 m., 23 Aug., 
1903, Metcalfe 574 (Greene Herb., Univ. of Notre Dame, U. 
S. Nat. Herb., Univ. Ariz. Herb., and Mo. Bot. Gard. Herb.), 
TYPE; ravines between the Copper Mines and the Mimbres, 
Oct., 1851, Wright 1289 (Gray Herb., Phil. Acad. Nat. Sci. 
Herb., and Mo. Bot. Gard. Herb.), type of S. Wrightii; valley 
of the Rio Grande, Mex. Bound. Survey 656 (U. S. Nat. Herb. 
Nos. 49352, 49353) ; Santa Rita del Cobre, 22 Sept., 1880, E. L. 
Greene (Mo. Bot. Gard. Herb.) ; Lookout Mine, Sierra Co., 22 
July, 1904, Metcalfe 1179 (Mo. Bot. Gard. Herb.) ; open slope, 
Navajo Indian Reservation, in the Tunitcha Mountains, 8 
Aug., 1911, Standley 7678 (U. S. Nat. Herb.) ; Tierra Blanca 
Canon, alt. 2070 m., 16 Aug., 1915, W. R. Chapline (U. S. Nat. 
Herb.). 
Arizona: open steep slopes, head of Little Colorado River, 
10 July, 1912, Goodding 1146 (Univ. Ariz. Herb.). 
128. S. fastigiatus Nutt. Trans. Am. Phil. Soc. N. 9. 7: 
410. 1841; Torr. & Gray, Fl. N. Am. 2: 439. 1843; Gray, Syn. 
Fl. N. Am. 1? : 390. 1884, and ed. 2, 1886, excl. var. Layneae; 
Heller, Cat. N. Am. РІ. 146. 1898, and ed. 2, 229. 1900; Howell, 
Fl. N. W. Am. 378. 1900; Greenm. Monogr. Senecio, I. Teil, 
24. 1901, and in Engl. Bot. Jahrb. 32 : 20. 1902; Piper, Contr. 
U. S. Nat. Herb. 11 : 599. 1906; Piper & Beattie, Fl. Northwest 
Coast, 389. 1915. 
S. spatuliformis Heller, Bull. Torr. Bot. Club 26 : 552. 1899. 
S. ligulifolius Greene, Leafl. Bot. Obs. & Crit. 2 : 14. 1909. 
S. leucocrinus Greene, Leafl. Bot. Obs. & Crit. 2 : 14. 1909. 
An herbaceous perennial, white-tomentose or floccose-tomen- 
tulose to nearly glabrous; stems one to several from an 
ascending rootstock, erect, 2 to 6 dm. high, simple or branched; 
