924 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
HERBARIUM SPECIMENS FROM Mexico—Continued. 
Curnuanua: Mifiaca, along railway, Hitchcock 7753. Sdnchez, along railway, 
Hitchcock 7703. Chihuahua, along dry run, Hitchcock 7778; hills and plains, 
Pringle 812. 
SrnaLoa: Topolobampo, Palmer 242 in 1897. 
Duranco: Durango, water of ditch, Hitchcock 7656; low, moist places on hill- 
sides, Palmer 524 in 1896; among rocks and agave plants, Palmer 736 in 1896. 
Tepehuanes, Palmer 532 in 1906. Torreén, weed in field, Hitchcock 7557. 
AGUASCALIENTES: Aguascalientes, along ditch, futchcock 7480. 
Jauisco: San Nicold4s, weed in field, Hitchcock 7228. Guadalajara, prairie, Hitch- 
cock 7319. 
Guanajuato: Acdmbaro, along ditch, Hitchcock 6926. Irapuato, moist sand.- 
clay plain, Hitchcock 7406. 
QUERETARO: Querétaro, edge of field, Hitchcock 5805. 
Cotma: Alzada, upland prairie, Hitchcock 7063. 
GuERRERO: Balsas, along railway, Hitchcock 6812. Santa I’¢, along railway, 
Hitchcock 6691. 
Oaxaca: Oaxaca, along hedge, Hitchcock 6108; along ditch between Tule a 
Oaxaca, Hitchcock 6169. 
8. Eriochloa aristata Vasey, Bull. Torrey Club 13: 229. 1886. 
Type locality, ‘“S. W. Chihuahua,” the type specimen collected by Palmer. 
Rance: Southwestern United States and northwestern Mexico. 
HERBARIUM SPECIMENS FROM MEXIco: 
Sonora: Hermosillo, along ditch, Hitchcock 3539. Alamos, Palmer 692 in 1890. 
Smvatoa: Culiacdn, Brandegee in 1904. 
CHIHUAHUA: Southwestern Chihuahua, Palmer 110e in 1885. 
4. Eriochloa lemmoni Vasey & Scribn. Bot. Gaz. 9: 185. pl. 2. 1884. 
Type locality, ‘‘Arizona (no. 2910 Lemmon, 1882).”’ 
Rance: Southwestern United States to Sinaloa, Mexico. 
HERBARIUM SPECIMENS FROM MExIco: 
SrvaLoa: Imala, Palmer 1762 in 1891. 
CHIHUAHUA: Southwestern Chihuahua, Palmer 110a in 1885. ) 
5. Eriochloa nelsoni Scribn. & Smith, Bull. U.S. Dept. Agr. Div. “et 4: 12. 
1897. 9 
Type locality, ‘“‘hills east of Cuicatlan, Oaxaca, Mexico,’’ the type specinen col- 
lected by Nelson (no. 1707). 
RanGE: South central Mexico to Central America. iy 
HERBARIUM SPECIMENS FROM MExIco: ye 
Jarisco: Guadalajara, dry shaded ledges, Pringle 2317; side of Parranca de 
Oblatos, Hitchcock 7349. | 
MoreEtos: Yautepec, lava fields, Pringle 11224. 
GUERRERO: Balsas, rocky hill, Hitchcock 6784. 
Oaxaca: Cuicatlin, hills, Nelson 1707. 
32. BRACHIARIA (Trin.) Griseb. in Ledeb. Fl. Ross. 4: 469. 1853. 
KEY TO THE SPECIES. 
Spikelets 8 mm. long; blades ciliate...............-....-.-.--.--. 2. B. meziena. 
Spikelets 5 mm. long; blades not ciliate... ce eeeee ee ee ee 1. B. plantaginea; 
1. Brachiaria plantaginea (Link) Hitche. Contr. U. 8. Nat. Herb. 12: 212. 1909) 
Panicum plantagineum Link, Hort. Berol. 1: 206. 1827. / 
Type locality unknown. 
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