76 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
1. Sporobolus giganteus Nash, Bull. Torrey Club 25: 88. 1898. 
SANDHILL DROPSEED. 
Sporobolus cryptandrus giganteus Jones, Contr. West. Bot. 14: 11. 1912. 
Tyre Locality: On the White Sands, New Mexico. Type collected by Wooton 
(no. 394). 
RANGE: Southern New Mexico. 
New Mexico: Gila Hot Springs; Socorro; Sabinal; Mesilla Valley; White Sands; 
south of Carrizozo; Arroyo Ranch. Sandhills, in the Lower Sonoran Zone. 
2. Sporobolus strictus (Scribn.) Merr. U. 8. Dept. Agr. Div. Agrost. Circ. 32: 6. 
1901. 
Sporobolus cryptandrus strictus Scribn. Bull. Torrey Club 9: 103. 1882. 
Type Locauity: Banks of the Rillita, near Camp Lowell, Arizona. 
RanaGe: Colorado to Arizona and Mexico. 
New Mexico: Throughout the State except in the southeastern corner. Dry hills 
and plains, in the Lower and Upper Sonoran zones. 
8. Sporobolus confusus (Fourn.) Vasey, Bull. Torrey Club 15: 293. 1888. 
‘ilfa confusa Fourn. Mex. Pl. 2: 101. 1881. 
Tyrer Locatity: ‘‘In devexis arenosis montis ignivomi Jorullo,’’ Mexico. 
Rance: Washington to Texas and Mexico. 
New Mexico: Ensenada; Santa Fe and Las Vegas mountains; Mogollon Moun- 
tains; Mangas Springs; Black Range; San Luis Mountains; Animas Valley; Tortu- 
gas Mountain; Organ Mountains; White Mountains. Dry hills and canyons, in the 
Lower and Upper Sonoran zones. 
4. Sporobolus auriculatus Vasey, Contr. U.S. Nat. Herb. 3: 64. 1892. 
Type Locality: Texas. 
Rance: Western Texas and southern New Mexico. 
New Mexico: Albuquerque; Cross L Ranch; Farmington; Chama; Deming; 
Socorro; Carrizozo; White Sands; Chosa Springs; Lake Arthur; Hope; Roswell; Dona 
Ana Mountains. Plains, in the Lower and Upper Sonoran zones. 
5. Sporobolus asperifolius (Nees & Mey.) Thurber in 8. Wats. Bot. Calif. 2: 269. 
1880. 
Vilfa asperifolia Nees & Mey. Mém. Acad. St. Pétersb. VI. Sci. Nat. 47: 95. 1840. 
Type LocaLity: ‘Chile; Rio Mayno; Copiapo.”’ 
RanGe: British America to California, New Mexico, and Missouri; also in South 
America. 
New Mexico: Albuquerque; Carrizo Mountains; Cedar Hill; Dulce; Pecos; Ala- 
millo; Kingston; Mangas Springs; Mesilla Valley; Roswell; White Sands; Dona Ana 
Mountains. Valleys and plains, often in alkaline soil, in the Lower and Upper 
Sonoran zones. 
6. Sporobolus texanus Vasey, Contr. U. S. Nat. Herb. 1: 57, 1890. 
TypeE LocaLity: Screw Bean, Presidio County, Texas. 
- Ranae: Western Texas and southern New Mexico. 
New Mexico: Carlsbad; along the Pecos near Roswell. Dry plains. 
7. Sporobolus airoides Torr. U. 8. Rep. Expl. Miss. Pacif. 7%: 21. 1856. 
BUNCHGRABS, 
Agrostis airoides Torr. Ann. Lyc. N. Y. 1: 151. 1824. 
Tyre Locauity: ‘“‘On the branches of the Arkansas, near the Rocky Mountains,” 
Colorado. ° 
Rance: Washington and Nebraska to California and New Mexico. 
New Mexico: Carrizo Mountains; Aztec; McCarthys Station; Santa Ie; Ojo 
Caliente; Algodones; Belen; Zuni; Socorro; Cliff; Mangas Springs; Mesilla Valley; 
White Sands. Open plains and dry slopes, in the Lower and Upper Sonoran zones. 
