366 CONTRIBUTIONS FROM THE NATIONAL WERBARIUM. 
18. Eragrostis erosa Scribn.; Beal, Grasses N. Amer. 2: 483. 1896. 
Type locality, ‘‘Mexico (Chihuahua),”’ the type specimen collected in the Santa 
Eulalia Mountains by Pringle, no. 415. 
Rance: Known only from Chihuahua. 
JIERBARIUM SPECIMENS: 
CuinuAnHuA: Santa Eulalia Plains, Wilkinson 341; Santa Eulalia Mountains, 
Pringle 415. 
19. Eragrostis lugens Nees, Agrost. Bras. 505. 1829. 
Type locality, ‘‘ad Monte Video et in confinibus regni Paraguayani,’’ the type 
specimen collected by Sello. 
Rance: Southwestern United States to Argentina. 
HERBARIUM SPECIMENS FROM Mexico: 
Lower Cauirornia: El Taste, Brandegee in 1902. Sierra de la Laguna, Bran- 
degee 28 in 1899, Sierra de San Francisquito, Brandegee 10 and 20 in 1899. 
CHIHUAHUA: Sierra en Media, Nelson 6467. 
Duranco: Durango, dry ground, Hitchcock 7598. Tron Mountain, higher points, 
Palmer 531 in 1896; among the rocks, Palmer 727 in 1896. 
CoaHUILA: Saltillo, cornfield, Hitchcock 5597; sandy field near river, Hitchcock 
_ 5627; rich soil, Palmer 408 in 1898. 
Zacatecas: Zacatecas, gulch in dry sterile hills, Hiteheock 7515. 
San Luis Porosf: San Luis Potosi, edge of field, Hitchcock 5672; Parry & Palmer 
938 in 1878; Schaffner 138. Cardenas, railway cut, LZitchcock 5731. Alvarez, 
Palmer 172 in 1904. 
Jauisco: Zapotlan, damp soil, railway right of way, [Hitchcock 7111; pine woods, 
hillside, Hitchcock 7242. Guadalajara, Palmer 203 and 234 in 1886. 
Hmaueo: Pachuca, rocky hill, Hitchcock 6714, 6743. Tula, valley, Pringle 6634. 
Micnoacdn: Urudpan, along road, Hitchcock 6960; prairie, Hitchcock 6968; weed 
along railway, Hitchcock 6991. Jacuaro, along railway, Hitcheock 6956. 
México: Rio Hondo, Holway 5. Popo Park, open ground, Jitchcock 6020. 
Toluca, rocky hill, Hitchcock 6888. Hacienda de la Encarnacién, Rose, 
Painter & Rose 8453. Federal District, field, Hitchcock 5912, 5924; open 
meadow, fitcheock 5934; depression in lava rock, Hiteheock 5959; Orcutt 
3694; Bourgeau 228, 673; Pringle 9602; Rose & Hay 5508. 
Puesia: Esperanza, rocky hill, Hitchcock 6491. San Marcos, railway embank- 
ment, Hitchcock 6523, 6534, Chinantla, Liebmann 527. Cerro Guadelupe, 
Nicolas in 1909, Cerro del Gavilan, Purpus 4220. 
VERACRUZ: Orizaba, roadside ditch, Hitchcock 6337, 6338; open rocky hill, Hitch- 
cock 6367; Botteri 682; Bourgeau 2643. Jalapa, clay cut, Hitchcock 6601, 6677. 
Mirador, Liebmann 526. 
20. Eragrostis elliottii S. Wats. Proc. Amer. Acad. 25: 140. 1890. 
Type locality, ‘‘Paris Island,’’ presumably off the coast of South Carolina or 
Georgia. 
RanGe: Southern United States, Gulf coast. of Mexico and the West Indies, 
HERBARIUM SPECIMENS FROM Mexico: 
TAMAULIPAS: Tampico, sand dunes, Hitchcock 5799. 
Veracruz: Veracruz, sandy prairie, Hitchcock 6553; wet sands, Pringle 5561; 
Orcutt 3251. 
21. Eragrostis plumbea Scribn.; Beal, Grasses N. Amer. 2: 484. 1896. 
Type locality, ‘‘ Mexico (Guadalajara),”’ 
Rance: San Luis Potosf to Michoac4n and Veracruz. 
