HITCHCOCK-——MEXICAN GRASSES. 257 
HERBARIUM SPECIMENS FROM Mexico—Continued. 
Veracruz: Veracruz, weed along street, Hitchcock 6569. Valley of Orizaba, 
Bourgeau 2593. Rfo Blanco, roadside ditch, Hitchcock 6325. 
More tos: Cuernavaca, weed in pasture, Hitchcock 6836. 
GuERRERO: Balsas, along railway, Hitchcock 6802. Iguala, in Canyon de la 
Mano Negra, Rose, Painter & Rose 9386. 
Oaxaca: Tomellin, Rose, Painter & Rose 10048; weed in cornfield, Hitchcock 
6228. Oaxaca, edge of water in ditch, Hitchcock 6125. 
2. Echinochloa zelayensis (H. B. K.) Schult. Mant. 2: 269. 1824. 
Oplismenus zelayensis H. B. K. Nov. Gen. & Sp. 1: 108. 1816. 
Type locality, ‘‘in alta planitie montana regni Mexicani prope Zelaya, Queretaro.” 
Rance: Southwestern United States to South America. 
HERBARIUM SPECIMENS FROM MEXICO: 
Sonora: Horseshoe Bend of the Colorado River, Palmer 949 and 950 in 1889. 
Curauanva: Southwestern Chihuahua, Palmer 18 in 1885. Casas Grandes, 
Townsend & Barber 353. 
Duranco: Durango, in water of ditch; Hitchcock 7565, 7566; along water courses 
and ditches, sometimes in shallow water, Palmer 252 in 1896. Santiago 
Papasquiaro, along water courses, Palmer 466 in 1896. Torredn, along ditch, 
Hitchcock 7725. 
Coanvtta: Saltillo, in wet soil, Palmer 380 in 1898; wet irrigation ditch, Httchcock 
5600, 5606, 5607, 5612. 
Zacatecas: Zacatecas, along dry river bed, Hitchcock 7526. 
AGUASCALIENTES: Aguascalientes, along pond, Hitchcock 7486; weed along road, 
edge of field, Hitchcock 7442. 
San Luis Porost: San Luis Potos{f, dry ditch, Hitchcock 5655. 
Jauisco: Orozco, shallow water of large pond, Hitchcock 7385. Guadalajara, 
Palmer 430 in 1886; in water of ditch on road to Barranca de Oblatos, HMitch- 
cock 7310, 7314. Colotlén, Rose 3606. 
Guanasuato: Ac4mbaro, along ditch, Hitchcock 6935. Irapuato, along ditch, 
Hitchcock 7387; moist sandy-clay plain by ditch, Hitchcock 7398, 7399, 7421. 
Guanajuato, Dugés in 1897. 
QuERETARO: Querétaro, irrigation ditch, Hitchcock 5820, 5835, 5850, 5851, 5867. 
México: Valley of Mexico, Pringle 9585; Orcutt 4105. Xochimilco, ditch, 
Hitchcock 5894. Santa Anita, Bowrgeau 680. Near Mexico City, ditches, 
Bourgeau 236. 
PueEBLA: Tehuacd4n, along railway ditch, Hitchcock 6061. 
Veracruz: Orizaba, roadside ditch, Hitchcock 6326. 
Oaxaca: Oaxaca, water of ditch, Hitchcock 6175, 6181. 
Wirnout Locauity: Liebmann 386. 
8. Echinochloa sabulicola (Nees). 
Panicum sabulicola Nees, Agrost. Bras. 258. 1829. 
Type locality, South America, ‘‘in arenosis Parae” and “‘in Monte Video, et in con- 
finibus Regni Paraguayani’’ cited. 
Rance: Northern Mexico to South America. 
HERBARIUM SPECIMENS FROM MExIco: 
Lower CauiFoRNIA: La Paz, Palmer 130 in 1890. 
Sonora: Hermosillo, along ditch, Hitchcock 3599. 
Cumuanvua: Between Casas Grandes and Sabinal, Nelson 6355a. Between 
Colonia Garcia and Pratt’s ranch, Nelson 6244. 
SinaLoa: Culiacdn, Palmer 1790 in 1891. 
Duranco: Durango, in swamps, often in water, Palmer 730 in 1896. 
Coanutta: Jaral, Schumann 1738. Saltillo, common in wet places, Palmer 418 
in 1898. 
