678 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
Ranae: Wyoming and South Dakota to Utah and New Mexico. 
New Mexico: Tunitcha Mountains; Chama; Tierra Amarilla; Espanola; Pajarito 
Park; Santa Fe and Las Vegas mountains; Raton; Hanover Mountains; Ruidoso 
Creek. Open slopes and meadows, chiefly in the Transition Zone, sometimes in the 
Upper Sonoran. 
9. Erigeron senilis Woot. & Standl. Contr. U. 8. Nat. Herb. 16: 185. 1913. 
TYPE Locatiry: Canyon above Van Pattens Camp in the Organ Mountains, New 
Mexico. Type collected by Standley, June 9, 1906. 
Rance: Organ Mountains, New Mexico. 
10. Erigeron philadelphicus L. Sp. Pl. 863. 1753. 
Tyre Locauity: ‘Habitat in Canada.’’ 
Ranae: British America to California, New Mexico, and Florida. 
New Mexico: Aztec; San Juan; Pecos; Cienaga Ranch; Socorro; near Mesilla; 
White and Sacramento mountains. Meadows, in the Upper Sonoran and Transition 
zones. 
11. Erigeron gilensis Woot. & Stand]. Contr. U. 8S. Nat. Herb. 16: 184. 1913. 
Type Locattry: North Fork of the Rio Gila, New Mexico, Type collected by 
Wooton, August 4, 1900. 
RanGe: Known only from type locality. 
12. Erigeron modestus (DC.) A. Gray, Mem. Amer. Acad. n. ser. 4: 68. 1849. 
Distasis modesta DC, Prodr. 5: 279. 1836. , 
* Type Locauity; Laredo, Texas. 
Ranae: Western Texas to eastern New Mexico. 
New Mexico: Llano Estacado (Bigelow). Plains, in the Upper Sonoran Zone. 
13. Erigeron bellidiastrum Nutt. Trans. Amer. Phil. Soc. n. ser. 7:07. 1841. 
Type Locaniry: “On the borders of the Platte, within the Rocky Mountains.”’ 
Ranae: Nebraska and Colorado to New Mexico and western Texas, 
New Mexico: Nara Visa (Fisher 15, 81). Plains, in the Upper Sonoran Zone. 
14. Erigeron eastwoodiae Woot. & Standl. Contr. U. 8. Nat. Herb. 16: 183. 1913. 
Tyre Locauity: Dry hills at the north end of the Carrizo Mountains, northeast corner 
of Arizona. Type collected by Standley (no. 7433). 
Rance: Southern Utah and Colorado to northern Arizona and New Mexico. 
New Mexico: Carrizo Mountains; Shiprock. Sandy hills and plains, in the Upper 
Sonoran Zone, 
15. Erigeron wootoni Rydb. Bull. Torrey Club 33: 153. 1906. 
Lrigeron cinereus var. y A. Gray, Mem. Amer. Acad. n. ser. 4: 68. 1849, 
Type Locautry: Valley of Santa Fe Creek, New Mexico. Type collected by Fend- 
ler (no. 385), 
RanGe: Colorado to Arizona and New Mexico, 
New Mexico: Carrizo Mountains; Tunitcha Mountains; Chama; Santa Fe and Las 
Vegas mountains; head of Canada Alamosa; White Mountains. Hills and meadows, 
in the Upper Sonoran and Transition zones. 
It is doubtful whether this isin any essential respect different from Erigeron divergens. 
The two are almost invariably found growing together. 
16. Erigeron arenarius Greene, Bull. Torrey Club 25: 121. 1898. 
Tyre Locaniry: Sandhills near Mesilla, New Mexico, Type collected by Wooton 
(no. 23). . 
Ranae: Southwestern New Mexico. 
New Mexico: Mangas Springs; Mesilla Valley: northeast corner of Turney Range, 
Dona Ana County. Sandy soil, in the Lower Sonoran Zone, 
The species is very abundant about the type locality, growing on dunes of nearly 
pure sand. It occurs at a much lower level than most of the species and comes into 
