HITCHCOCK—-MEXICAN GRASSES. 218 
HERBARIUM SPECIMENS FROM Mrxico—Continued. 
Couma: Manzanillo, cliffs by seashore, Hitchcock 7045. 
Moretos: Cuernavaca, rocky soil, Hitchcock 6877. Yautepec, wet places, 
Pringle 8678. 
GuERRERO: Balsas, prairie, Hitchcock 6792. 
Oaxaca: San Antonio, Conzatt: 2009. 
18. ANTHEPHORA Schreb. Beschr. Griis. 2: 105. pl. 44. 1779. 
1. Anthephora hermaphrodita (L.) Kuntze, Rev. Gen. Pl. 2: 759. 1891. 
Tripsacum hermaphroditum L, Syst. Nat. ed. 10. 1261. 1759. 
Type locality, Jamaica. 
Rance: Mexico to Brazil. 
HERBARIUM SPECIMENS FROM MEXICO: 
Lower Cauirornia: Cape St. Lucas, Xantus 114. 
SinaLoa: Topolobampo, Rose, Standley & Russell 13278. Mazatlan, dry hill, 
Rose, Standley & Russell 13687. Culiacin, moist field, Rose, Standley & 
Russell 14865. Fuerte, river valley, Rose, Standley & Russell 13562. Lodi- 
ego, wet shaded spot on river bank, Palmer 1662 in 1891. 
Trpic: Acaponeta, moist ravine, Rose, Standley & Russell 14228. 
Couma: Colima, Palmer 1255 in 1891, 146 in 1897; Orewtt 4567. Armeria, weed 
along railroad, Hitchcock 7025. Manzanillo, rocky cliff by seashore, Hitch- 
cock 7041; Palmer 1093 in 1891. 
Veracruz: Veracruz, sandy prairie, Hitchcock 6558. Jalapa, weed along rail- 
road, Hitchcock 6622. 
Guerrero: Acapulco, Palmer 38 and 285 in 1895. 
Oaxaca: Cuicatlén, banks of streams, Pringle 6030; Nelson 1864. 
Cutapas: Tonala, Nelson 2906. 
Yucatkn: Mérida, Schott 549. 
19. HTILARIA H. B. K. Nov. Gen. & Sp. 1: 116. pl. 37, 1816. 
KEY TO THE SPECIES. 
Spikelet cluster 6 to 7 mm. long, the inner awns of involucre 
ascending, slender, scabrous.....-----.-------------++++++ 1. H. cenchrovdes. 
Spikelet cluster 4.5 to 5 mm. long, the inner awns of involucre 
recurved-spreading, flattened, ciliate..........-..------- la. H. cenchroides 
ciliata. 
1. Hilaria cenchroides H. B. K. Nov. Gen. & Sp. 1: 117. pl. 37, 1816. 
CURLY MESQUITE, 
Hilaria cenchroides terana Vasey, Contr. U. 8. Nat. Herb. 1: 53. 1890. 
Type locality, ‘‘in planitie montana regni Mexicani, inter Zelaya et Guanaxuato, . 
locis subirigidis.”’ 
Rance: Southwestern United States to Central America. 
HERBARIUM SPECIMENS FROM MEXICO: 
Sonora: Guaymas, rocky lava hill, Hitchcock 3558; Palmer 347 in 1887. 
CurauanHua: Chihuahua, hills and plains, Pringle 493. 
Dvuranco: Durango, common in alkaline ‘‘bottoms,’’ Palmer 541 in 1896; bank 
of ditch in alkaline flat, Palmer 379 in 1896; along road in open ground, 
Hitchcock 7580. 
Zacatecas: Zacatecas, along dry river bed, Hitchcock 7537. 
AGUASCALIENTES: Aguascalientes, sterile rocky hill, Hitchcock 7477; Hartweg 251. 
San Luis Porost: Alvarez, Palmer 165 in 1904. Cérdenas, open grass land, 
Hitchcock 5713. 
