262 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM, 
6. Chaetochloa grisebachii (Fourn.) Scribn. U. 8. Dept. Agr. Div. Agrost. Bull. 
4: 39. 1897. 
Setaria grisebachii Fourn. Mex. Pl. 2: 45. 1886. 
Type locality, Mexico, the following Mexican collections being cited: Mexico, 
Berlandier 622; Cerro de los Bafios in valley of Mexico, Bourgeau 441; in silva de la 
Desierta Vieja, Bourgeau 1159; San Luis Potosi, Virlet 1337; Orizaba, Schaffner 36; 
Cafion de las Mifias et Victoria, Karwinsky; Tehuacdn, Liebmann 361. 
RanaeE: Southwestern United States and Mexico. 
HERBARIUM SPECIMENS FROM MEXIco: 
Lower Catirornia: Arroyo San Lagaro, Brandegee in 1902, 
Sonora: Guaymas, Palmer 191 in 1887. Hermosillo, rocky hill, Hitchcock 3607. 
Cutmuanva: Chihuahua, shaded places, rocky hills, Pringle 381; along dry run, 
Hitchcock 7774. Sierra Madre, Nelson 6299. 
Durango: Durango, dry ground, Hitchcock 7573; rocky hill, Iron Mountain, 
Hitchcock 7643; Palmer 716 in 1896. Torreén, rocky hill, Hitchcock 7546. 
CoanuIza: Saltillo, Palmer 336 and 337 in 1904, 385 in 1898, 397 in 1904. Sabinas, 
Nelson 6820. 
AGUASCALIENTES: Aguascalientes, sterile rocky hill, Hitchcock 7461. 
San Luts Potosf: San Luis Potosf, Parry & Palmer 957 in 1878; Schaffner 1044. 
JaLisco: Guadalajara, side of Barranca de Oblatos, Hitchcock 7338, 7369. 
Guanasuato: Irapuato, dry shrubby hill, Hitchcock 7427. 
Cotma: Manzanillo, along bluff, Hitchcock 7026. 
Micwoacan: Morelia, Arséne in 1909. 
Mexico: Rio Hondo, Holway 11,3153. Federal District, Rose 3554; Holway 3040; 
LMitchcock 7836; Pringle 9578, 9579; Oreutt 4342. 
Pursia: Atlixco, Nelson in 1893. Tehuacdn, cactus hill, Hitchcock 6095. San 
Marcos, railway embankment, Hitchcock 6512. Puebla, Nicolas in 1909. 
GuERRERO: Balsas, gravelly soil along railway, Hitchcock 6774; open woods on 
hill, Hitchcock 6786. 
Oaxaca: E] Parién, dry banks, Pringle 4937. Oaxaca, Monte Alban, Smith 939; 
along hedge, Hitchcock 6105; depression in rocky hill, Hitchcock 6156. Be- 
tween Tule and Oaxaca, in mud near ditch, Hitchcock 6178, 6184. 
6a. Chaetochloa grisebachii ampla Scribn. & Merr. U.S. Dept. Agr. Div. Agrost. 
Bull. 21: 36. f. 27. 1900. 
Type locality, ‘New Mexico, Organ mountains,” the type collected by Vasey in 
1881. 
Range: Southwestern United States to southern Mexico. 
HERBARIUM SPECIMENS FROM Mexico: 
CoaHurza: Saltillo, sandy field, river bottom, Hitchcock 5626; weed in park, 
Hitchcock 5641. 
Duranao: Durango, near spring, Palmer 728 in 1896. 
Feperat Disrricr: Waste place, Hitchcock 5911; along track, Hitchcock 5925; 
lava beds, Pringle 6470; Orcutt 3697. 
Oaxaca: Valley of Oaxaca, Conzatti & Gonedlez 344. 
7. Chaetochloa macrostachya (H. B. K.) Scribn. & Merr. U. S. Dept. Agr. Div. 
Agrost. Bull. 21: 29. f. 16. 1900. 
Setaria macrostachya H. B. K. Nov. Gen. & Sp. 1: 110. 1816. 
Type locality, ‘‘in planitie montana Mexicana inter Salamanca et Zelaya.’’ 
RanGE: Northern Mexico to South America. 
HERBARIUM SPECIMENS FROM Mexico: 
Sonora: Hermosillo, meadow near river, Hitchcock 3590. Guaymas, Palmer 53 
in 1887, 
