744 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
5. Senecio chloranthus Greene, Pittonia 4: 118. 1900. 
TyPE Locauity: Mountains of southern Colorado, near Pagosa Peak. 
Ran@eE: Colorado and northern New Mexico. 
New Mexico: Tunitcha Mountains; Rio Pueblo; Baldy; Santa Fe and Las Vegas 
mountains. Moist shaded slopes in the mountains, in the Canadian and Hudsonian 
zones, 
6. Senecio bigelovii A. Gray, U. 8. Rep. Expl. Miss. Pacif. 4: 111. 1856. 
TYPE LocaLity: Mountain arroyos, near Camp Douglas, New Mexico. Type col- 
lected by Bigelow. 
Ran@e: Mountains of New Mexico. 
New Mexico: Sandia Mountains; White Mountains. Transition and Canadian 
zones. 
Typically a tall plant, sometimes 1.5 meters high, with many ascending branches, 
but sometimes low and scarcely at all branched. Mr. Wooton collected the plant 
in its type locality in the summer of 1910. His specimens seem to have smaller 
heads than Bigelow’s, but those of the latter collection owe their size to the fact that 
they are in fruit (they must have been collected about the first of October) and that 
they were pressed very flat. In some of Wooton’s specimens the leaves are truncate 
at the base, but in most of them they are abruptly contracted. 
7. Senecio rusbyi Greene, Bull. Torrey Club 9: 64. 1882. ; 
TyPE Locatity: Mogollon Mountains, New Mexico. Type collected by Rusby 
(no. 215). 
Ranae: Mountains of southern New Mexico and Arizona. 
New Mexico: Hillsboro Peak; Mogollon Mountains. Transition and Canadian 
zones. 
The species is certainly very close to S. bigelovii, and it is questionable whether it 
might not better be reduced to synonymy. 
8. Senecio parryi A. Gray in Torr. U. 8. & Mex. Bound. Bot. 103. 1859. 
Type Locauity: “In live-oak groves, 150 miles above the mouth of the Pecos, on 
the Mexican side of the Rio Grande.” 
Ranae: Southwestern New Mexico to southern California and adjacent Mexico. 
New Mexico: Mogollon (Wooton). Mountains, in the Transition Zone. 
A most distinct species, entirely different from all our others by its viscid pubes- 
cence, 
9. Senecio filifolius Nutt. Trans. Amer. Phil. Soc. n. ser. 7: 414. 1841. 
Type Loca.ity: ‘‘The banks of the Missouri, toward the Rocky Mountains,” 
Ran@e: Utah and Colorado to Arizona and western Texas, south into Mexico. 
New Mexico: Common throughout the State. Plains and low hills, in the Lower 
and Upper Sonoran, rarely in the Transition, zones. 
No plant has a wider distribution in New Mexico than this. It occurs everywhere 
at low and middle elevations. It is in flower almost every month in the year in the 
southern part of the State, and is one of the earliest plants to bloom farther north. 
It is extremely variable in pubescence and in the form of the leaves, and probably 
when it is studied in a larger series of specimens it will be found to be an aggregate 
of species. Sometimes almost all the leaves are entire; again even the uppermost 
are pinnatifid. The plants of the higher elevations are more nearly glabrous than 
those of the mesas and foothills. On the sandy plains in the southern part of the 
State the plants are mostly woody at the base and even among the branches, 
10. Senecio spartioides Torr. & Gray, Fl. N. Amer. 2: 438. 1842, 
TYPE Loca.ity: ‘‘Upper Platte; on a steep sand bank of the Sweet-water River.” 
Range: Nebraska and Wyoming to Arizona and western Texas, 
New Mexico: Tunitcha Mountains; Chama; Fruitland; Taos; Ruidoso Creek. 
» Plains and low mountain valleys, in the Upper Sonoran and Transition zones, 
