29 



Eragrostis neo-mexicana Vasey, in Beal, Grasses N. A. 2: 485 (1896). 



Near C'olotlan, State of Jalisco, 3605 J. N. Rose, August 29, 1897; Saltillo, State o 

 Coahuila, 410, 412 E. Palmer, September, 1898; Sierra Madre Mountains, north 

 of Pachico, State of Chihuahua, 6800 E. W. Nelson, August 25, 1899. 



Eragrostis panamensis Presl, Rel. Haenk. 1: 277 (1830). 



Coatzacoalcos, Isthmus of Tehuantepec, State of Vera Cruz, 1051 C. L. Smith, Feb- 

 ruary, 1895, a robust form, distributed as Eragrostis major Host. 



Eragrostis pilosa (L. ) Beauv. Agrost. 71 (1812). 



Durango, State of Durango, 726 E. Palmer, September, 1896; Saltillo, State of Coa- 

 huila, 811 E. Palmer, September, 1898. 



Eragrostis plumosa Link, Hort. Berol. 1: 192 (1827). 



Colinia, 15 E. Palmer, July, 1897, along roadsides, shady ravines, and in gardens. 



Eragrostis purshii Schrad. Linna?a, 12: 451 (1838). 



Durango, State of Durango, 177, 183, 534, 723, 764, 869 E. Palmer, June-October, 

 1896; Rosario, State of Sinaloa, 1544, 1545 J. N. Rose, July 7, 1897, 1847 J. N. 

 Rose, July 26, 1897; Guaymas, State of Sonora, 1281 J. N. Rose, June 5-11, 1897; 

 Bolanos, State of Jalisco, 3699 J. N. Rose, September 10-19, 1897; between 

 Agnacata and Dolores, Territorio de Tepic, 2016 J. N. Rose, August 6, 1897; 

 Colima, 13 E. Palmer, 1897; Topolobampo, State of Sinaloa, 240 E. Palmer, 

 September, 1897; Saltillo, State of Coahuila, 812 E. Palmer, September, 1898. 



Eragrostis sessilispica Buckl. Proc. Acad. Nat. Sci. Phila. 1862: 97 (1862). 



Near Lake Santa Maria, State of Chihuahua, 6413 E. W. Nelson, September 7, 1899. 



Eatonia obtusata A. Gray, in S. AVats. Bot. Calif. 2: 302 (1880). 



Durango, State of Durango, 255 E. Palmer, June, 1896. 



Koeleria cristata (L.) Pers. Syn. 1: 97 (1805). {Aira cristafa L. Sp. PI. 63 (1753).) 



Near Colonia Garcia, Sierra ]Madre Mountains, State of Chihuahua, 6198 E. W. Nel- 

 son, August 1, 1899. 



Distichlis prostrata (H. B. K.) Desv. Gram. Chil. 398 (1853). ( Poa prostrata 

 H.B.K. Nov. Gen. et Sp. PI. 1: 157 (1815).) 



Durango, State of Durango, 182, 385(?), 388 E. Palmer, 1898, common in damp, 

 alkali meadows. 



Distichlis spicata (L.) Greene, Bui. Calif. Acad. Sci. 2: 415 (1887). ( Uniola spicata 

 L. Sp. PL 71 (1753).) 



Altata, State of Sinaloa, 1367 J. N. Rose, June 15, 1897; San Jose de Guaymas, 270 

 E. Palmer, October 14, 1897; near Lake Santa Maria, State of Chihuahua, 6461 

 E. W. Nelson, September 7, 1899. This grass is planted along ditches in sandy 

 soil to prevent banks from washing. 



Distichlis texana (Vasey) Scribn. U. S. Dept. Agr. Div. Agros. Bui. 17: 236, fg. 

 532 (1899). {Poa texana Vasey, Contr. U. S. Nat. Herb. 1: 60 (1890); Sleglingia 

 urightii Vasey, Contr. U. S. Nat. Herb. 1: 269 (1893).) 



Torreon, State of Coahuila, 507 E. Palmer, October, 1898, growing on sandy banks 

 of the Nassus River. 



Poa annua L. Sp. PI. 68 (1753). 



Nombre de Dios, State of Durango, 97 E. Palmer, April, 1896; Saltillo, State of Coa- 

 huila, 6 E. Palmer, April, 1899, about dwellings. 



Poa infirma H. B. K. Nov. Gen. et Sp. PI. 1: 158 (1815). 



Near Plateado, State of Zacatecas, 2712 J. N. Rose, September 1, 1897. 



* Poa pratensis L. Sp. PI. 67 (1753). 



Mountains near Jalapa, State of Vera Cruz; altitude, 1,750 m. ; 7880 C. G. Pringle, 

 "April-May, 1899. 



Graphephorum altijugum Fourn. Bui. Soc. Bot. Fr. 24: 182 (1877). 



Sierra de San Felipe, State of Oaxaca, 941 C. L. Smith, 1894. 



Festuca amplissima Rupr. Bui. Acad. Brux. 9-: 236 (1842). 



Sierra de San Felipe, State of Oaxaca, 924 C. L. Smith, September, 1894; Durango, 

 State of Durango, 2358 J. N. Rose, August 16, 1897, small form. 



