4G8 Rydberg : Rocky Mountain flora 



Wyoming: Bridger Peak, 1903, Goodding 1942; between 

 Sheridan and Buffalo, 1900, Tweedy 3034; Upper Buffalo Fork, 

 1899, C. C. Curtis; Centennial Mountain, Albany Co., 1902, 

 Aven Nelson 8773; also 1900, 7719; Copperton, 1901, Tweedy 

 4136; Eastern slope of Big Horn Mountains, 1900, Tweedy 3033. 



New Mexico: Mineral Creek, 1904, Metcalfe 1415; Santa 

 Fe Canon, 1897, Heller 3819. ] 



Senecio Kingii sp. no v. 



Senecio eremophilus D. C. Eat., Bot. King's Exp. 191. 1871. 



Not S. eremophilus Richards. 1823. 



Perennial, with a thick rootstock; stems glabrous, 3-6 dm. 

 high, rather stout, leafy; leaves obovate or oblanceolate in out- 

 line, 4-7 cm. long, the lower petioled, all pinnately lobed one 

 third to one half the distance to the midrib, with ovate or lanceo- 

 late, more or less toothed lobes; heads numerous, corymbose- 

 paniculate, 9-1 1 mm. high; involucres glabrous, campanulate, 

 7-8 mm. high, 6-7 mm. broad; bracts linear, acute, carinate, 

 sometimes with small black tips; the calyculate ones few, subulate; 

 rays 5-7 mm. long; achenes scabrous-papillose on the rounded 

 angles. 



This species is related to S. eremophilus , but differs in the some- 

 what smaller and erect heads, less deeply dissected leaves, and 

 their broad and short divisions, and shorter rays. One of the 

 specimens cited below was determined some years ago as 5. glauci- 

 folius, but that species differs from this as well as from the rest 

 of the group in the narrower and scarcely carinate bracts. 



Utah: Cottonwood Canon, Aug. 1869, S. Watson 676 (type, 



in herb. Columbia University); Alta, Wahsatch Mountains, 1879, 



M. E. Jones 1144; American Fork Canon, July 1895, M. E. Jones; 



Big Cottonwood Canon, Aug. 1905, Garrett 1591; near Marysvale, 



1905, Rydberg & Carlton 7068; Mount Barrette, 7206; Fish Lake, 



7506. 



Senecio Leonardi sp. nov. 



Perennial, with a short rootstock; stem 4-5 dm. high, loosely 

 floccose; basal leaves long-petioled; petioles 5-15 cm. long; 

 blades obovate or oval, 2-6 cm. long, densely crenate, rather thick, 

 loosely floccose, or in age glabra te, rounded at the apex; lower 

 stem-leaves similar but with shorter petioles, the middle ones 

 more or less lyrate-pinnatifid at the base; upper stem-leaves 

 1-3 cm. long, lanceolate in outline, pinnately lobed and somewhat 



