826 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
Rance: Highlands of southern Mexico. 
HERBARIUM SPECIMEN: 
Oaxaca: Sierra de San Felipe, cool pine woods, Pringle 4919. 
8. Trisetum filifolium Scribn.; Beal, Grasses N. Amer. 2: 375. 1896. 
Type locality, “Mexico (Chihuahua),’’ the type specimen collected in the Sierra - 
Madre by Pringle (no. 1431). 
Rance: Known only from the mountains of Chihuahua. 
HERBARIUM SPECIMENS: 
Curnuanua: Sdénchez, rocky woods, Hitchcock 7682. Sierra Madre, cool slopes, 
Pringle 1430, 1431. 
9. Trisetum fournieranum nom. nov. 
Trisetum gracile Fourn. Mex. Pl. 2: 108. 1886, not Boiss. 1845. 
Type locality, Mexico, ‘La Hoya,” and ‘San Luis de Potost,”’ being cited. 
Rance: Highlands of central and southern Mexico. 
HERBARIUM SPECIMENS: 
Hrpauao: Pachuca, Rose 3587. 
Mexico: Sierra de las Cruces, open fir woods, Pringle 6149. Popocatepetl, woods, 
Mitchcock 5996; mossy bank, Hitchcock 6003, 6005. Popo Park, mossy bank 
in woods, ITitcheock 5974. 
10. Trisetum virletii Fourn. Mex. Pl. 2: 108. 1886. 
Type locality, “San Luisde Potosf,”’ the type specimen collected by Virlet (no. 1384). 
Range: Highlands of central and southern Mexico, 
HERBARIUM SPECIMENS: 
Micnoacan: P&tzcuaro, cool slopes of mountains, Pringle 3979. Morelia, Ags?ne 
in 1909. 
México: Ixtaccihuatl, open woods, Purpus 1612; Purpus in 1903. Sierra de las 
Cruces, Pringle 7571. 
WeEracrvuz: Cumbre de Istepec, Liebmann 597. 
More os: Tres Marfas Mountains, Pringle 11758. 
77. SPHENOPHOLIS Scribn. Rhodora 8: 142. 1906. 
1. Sphenopholis obtusata (Michx.) Scribn. Rhodora 8: 142. 1906. 
Aira obtusata Michx. Fl. Bor. Amer. 1: 62. 1803. 
Type locality, ‘‘in aridis, a Carolina ad Floridam.”’ 
Rance: Northeastern United States to southern Mexico. 
HERBARIUM SPECIMENS FROM MEXICO: 
Sonora: Alamos, Palmer 577 in 1890, 
CurHuaHvua: Sdnchez, rocky ravine, Hitchcock 7712. 
Duranco: Durango, edge of a garden, Palmer 255 in 1896. 
Coanurta: Rio Grande Valley near Diaz, Pringle 8285. 
Nvurvo Leon: Monterey, along wet irrigation ditch, Hitchcock 5571. 
Feperat Disrrict: Pasture, Hitchcock 5893. 
Puesua: Puebla, Nicolas in 1910. 
Oaxaca: Along ditch between Tule and Oaxaca, Hitchcock 6166. 
78. KOELERIA Pers. Syn. Pl. 1: 97. 1805. 
1. Koeleria cristata (L.) Pers. Syn. Pl. 1: 97. 1805. 
Aira cristata L. Sp. Pl. 63. 1753. 
Type locality, Europe, ‘‘in Angliae, Galliae, Helvetiae siccioribus.’’ 
Rance: Cooler parts of the northern hemisphere. 
