WOOTON AND STANDLEY—FLORA OF NEW MEXICO. 745 
11. Senecio riddellii Torr. & Gray, Fl. N. Amer. 2: 444, 1842. 
TYPE LOCALITY: Texas. 
RANGE: Nebraska and Colorado to New Mexico and Texas. 
New Mexico: Shiprock; Pecos; Lincoln. Plains and hills, in the Upper Sonoran 
Zone. 
12. Senecio multicapitatus Greenm. Bull. Torrey Club 33: 160. 1906. 
TypPE Locauity: ‘‘Plains and in mountain valleys of Colorado, New Mexico, and 
Arizona,” 
RanGeE: Colorado to Arizona and New Mexico. 
New Mexico: Farmington; Dulce; Ramah; Santa Clara Canyon; Raton; Santa 
Fe; Albuquerque; Arch; Clayton; Folsom; Nara Visa; Mogollon Mountains; Mesilla 
Valley; Dona Ana Mountains; Capitan Mountains; White Oaks. Plains and open 
slopes, from the Lower Sonoran to the Transition Zone. 
13. Senecio taraxacoides (A. Gray) Greene, Pittonia 4: 119. 1900. 
Senecio amplectens taraxacoides A. Gray, Proc. Acad. Phila. 1863: 67. 1864. 
TYPE LocALITy: Rocky Mountains of Colorado, 
RanaeE: Mountain peaks of Colorado and northern New Mexico. 
New Mexico: Truchas Peak; Baldy. Arctic-Alpine Zone. 
14. Senecio amplectens A. Gray, Amer. Journ. Sci. II. 33: 240. 1862. 
Tyre Locauity: ‘‘In the mountains high up, at the foot of the snowy range,” 
Colorado. 
Ran@eE: Colorado and northern New Mexico. 
New Mexico: Truchas Peak; Pecos Baldy; Baldy. High mountain peaks, in the 
Hudsonian and Arctic-Alpine zones. 
Probably this is our handsomest species, by its large heads and the peculiar long, 
bright yellow rays. It grows only above or at the edge of the timber on the high 
mountains, often under the low shrubs. 
15. Senecio actinella Greene, Bull. Torrey Club 10: 87. 1883. 
Tyre LOCALITY: Near Flagstaff, Arizona. 
Rance: Mountains of Arizona and New Mexico. 
New Mexico: Mogollon Mountains between the Middle and West Forks of the 
Gila (Wooton). 
16. Senecio mogollonicus Greene, Leaflets 1: 212. 1906. 
Tyre Locauity: Dry Flats on the West Fork of the Gila, Mogollon Mountains, New 
Mexico. Type collected by Metcalfe (no. 410). 
Rance: Known only from type locality. 
17. Senecio sanguisorboides Rydb. Bull. Torrey Club 27: 170. 1900. 
Typgz Locauity: Santa Fe Canyon, New Mexico. Type collected by Heller 
(no. 3820). 
Rance: Mountains of New Mexico. 
New Mexico: Santa Fe and Las Vegas mountains; Rio Pueblo; White and Sacra- 
mento mountains. Transition to Hudsonian Zone. 
18. Senecio ambrosioides Rydb. Bull. Torrey Club 37: 467. 1910. 
TYPE LocaLity: Green Mountain Falls, El Paso County, Colorado. 
Rance: Wyoming to New Mexico. 
New Mexico: Tunitcha Mountains; Carrizo Mountains; Chama; Santa Fe Canyon; 
Pecos; Las Vegas; Sandia Mountains; Black Range. Mountains, in the Transition 
Zone. 
19. Senecio macdougalii Heller, Bull. Torrey Club 26: 592. 1899. 
Type Locauity: Near Flagstaff, Arizona. 
Rance: Mountains of Arizona and New Mexico. 
