310 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
HERBARIUM SPECIMENS FROM Mexico—Continued. 
Durango: Torre6n, near ditch, Hitchcock 7551, 7727. Durango, under mesquite 
trees, alkali land, Palmer 742 in 1896. 
Coanurta: Jaral, Schumann 1735. Saltillo, dry ground in large, dense tussocks 
3 feet in diameter, Hitchcock 5581; adobe soil in irrigated field, Hitchcock 
5595; old plowed land in dry mesas, Hitchcock 5644; sandy ground, river 
bottom, Hiteheock 5636; low clay alkaline soil, Palmer 1 in 1898. 
Zacatecas: Zacatecas, along dry river bed, Hitchcock 7535. 
AGUASCALIENTES: Aguascalientes, sterile rocky hill, Hitchcock 7458; along ditch, 
Hitchcock 7493. 
San Luis Porosi: San Luis Potosi, edge of field, Hitchcock 5680. 
Hipaueo: Valley near Tula, Pringle 8616. 
Frprrat District: Rose & Hough 4887. 
9. Sporobolus palmeri Scribn. U. 8. Dept. Agr. Div. Agrost. Bull. 11: 48, pl. 5. 
1898. 
Type locality, ‘‘alkali bottoms near the city of Durango, Mexico,”’ the type speci- 
men collected in 1896 by Palmer (no. 180), 
Ranae: Known only from the type collection. 
10. Sporobolus strictus (Scribn.) Merr. U. 8S. Dept. Agr. Div. Agrost. Cire. 82: 
6. 1901. 
Sporobolus cryptandrus strictus Scribn. Bull. Torrey Club 9: 103. 1882. 
Type locality, ‘‘Banks of the Rillita, near Camp Lowell,” the type specimen col- 
lected by Pringle. 
Rance: Kansas to Nevada and south to northern Mexico. 
HERBARIUM SPECIMEN FROM Mexico: 
Sonora: Between Imeris and Santa Ana, Griffiths 6962. 
11. Sporobolus cryptandrus (Torr.) A. Gray, Man. 576. 1848. 
Agrostis cryptandra Torr. Ann. Lyc, N. Y. 2: 151, 1826. 
Vilfa eryptandra Trin. Mém, Acad. St. Pétersb. VI. Sci. Nat. 3': 69. 1840. 
Type locality, ‘‘On the Canadian river” [Texas or Oklahoma], the type specimen 
collected by James, 
RanGe: Northern United States to northern Mexico, 
HERBARIUM SPECIMENS FROM Mexico: 
Sonora: Guaymas, Palmer 65 in 1887. Las Ranchas, Rose, Standley & Russell 
15036. Hermosillo, meadow near river, Hitchcock 3595; dry bed of Sonora 
River, Chase 5507. Along railwsy 10 miles south of Nogales, Hitchcock 3630. 
3639. Nogales to Cocospora Ranch, Grifiths 6797. 
Cummuanua: Valley near Chihuahua, Pringle 419. 
CoanuIa: Saltillo, sandy field, river bottom, Hitchcock 5625, 
Nuevo Leon: M6nterey, sandy soil by river, Hitchcock 5551, 
12. Sporobolus flexuosus (Thurb.) Rydb. Bull. Torrey Club 82: 601. 1905. 
Vilfa cryptandra flecuosa Thurb.; Vasey in Wheeler, Rep. U. S. Surv. 100th 
Merid. 6: 282, 1878. ' 
Type locality, ‘Nevada and Arizona” cited. 
Rance: Southwestern United States and northern Mexico. 
HERBARIUM SPECIMENS FROM Mexico: 
Curmuanua: Sand hills near Paso del Norte [J uarez], Pringle 815. Colonia Dfaz, 
Nelson 6458. 
13. Sporobolus buckleyi Vasey, Bull. Torrey Club'10: 128. 1883. 
Type locality, ‘‘Texas,’’ the type specimen collected by Buckley. 
RanGeE: Texas and eastern Mexico. 
