21 



Jalapa, State of Vera Cruz, 1753 C. L. Smith, 1894; Durango, State of Durango, 193 



E. Palmer, June, 1896; near Santa Teresa, Territorio de Tepic, 21-12 J. N. Rose, 



1897; near Plateado, State of Zacatecas, 2708 J. X. Rose, August 31, 1897. 

 Sporobolus macrospermus Scribn. in Beal, Grasses N. A. 2: 302 (1896). 

 Las Sedas, altitude 2,000 m.. State of Oaxaca, 921 C. L. Smith, September 29, 1894. 

 Sporobolus minutiflorus Link, Hort. Berol. 1: 88 (1833). 

 On the road between Mesquitec and Monte Escobedo, State of Jalisco, 2613 J. N. 



Rose, August 26, 1897. 

 Sporobolus palmeri Seribn. U. S. Dept. Agr. Div. Agros. Bui. 11: 48, pi. 5 (1898). 

 Durango, State of Durango, 180 E. Palmer, June, 1896, in large bunches in alkali 



bottoms. 

 Sporobolus piliferus Kuuth, Enum. PI. 1: 211 (1833). 

 Jalapa, State of Vera Cruz, 1569 C. L. Smith, 1894; fields near Jalapa, State of Vera 



Cruz, altitude 1,250 m., 7881 C. G. Pringle, 1899. 

 Sporobolus utilis Torr. Pac. R. R. Rept. 5'^: 365 (1857). {Vilfa saccatiUa Fourn. 



Mex. PI. 2: 101 (1881).) 

 Durango, State of Durango, 738, 739 E. Palmer, September, 1896. 

 Sporobolus wrightii Scribn. Bui. Torr. Bot. Club, 9: 103 (1882). 

 Durango, State of Durango, 742 E. Palmer, October, 1896; between Rosario and Aca- 



poneta. State of Sinaloa, 1867 J. N. Rose, July 28, 1897; Saltillo, State of Coahuila, 



2 E. Palmer, April, 1898; City of Mexico, 4887 Rose and Hough, July 15, 1899; 



below Pachico, State of Chihuahua, 6243 E. W. Nelson, August 22-24, 1899; 



near Casas Grandes, State of Chihuahua; 6344 E. W. Nelson, August 30, 1899. 

 Blepbaroneuron tricholepis (Torr.) Nash, Bui. Torr. Bot. Club, 25: 88 (1898). 



( Vilfu U'ivholqjiH Torr. Pac. R. R. Rept. 4^: 155 (1857).) 

 Dos Cajetas, State of Durango, 833 E. Palmer, October, 1896; Serrania de Ajusco, 



Federal District, altitude 4,000 m., 6485 C. G. Pringle, 1896. 

 Epicampes bourgeei mutica Fourn. Mex. PI. 2: 88 (1881). 

 In the Sierra Madre Mountains, west of Bolanos, State of Jalisco, 3002 J. N. Rose, 



September 15-17, 1899. 

 Epicampes pubescens (H. B. K. ) Presl, Rel. Haenk. 1: 235 (1830). {Agrostis 



pubescats H. B. K. Nov. Gen. et Sp. PI. 1: 136 (1815).) 

 Sierra de San Felipe, altitude 3,075 m.. State of Oaxaca, 927 (in part) C. L. Smith, 



September 18, 1894. Distributed as Muhlenhergia distichophylla Kunth. This 



species is also represented in the National Herbarium by 5576 C. G. Pringle, 



1894, from the same locality. 

 Epicampes robusta Fourn. Mex. PL 2: 89 (1881). 

 In the Sierra Madre Mountains, west of Bolanos, State of Jalisco, 2997 J.N.Rose, 



September 15-17, 1897. 

 Polypogon elongatus H. B. K. Nov. Gen. et Sp. PL 1: 134 (1815). 

 Nombre de Dios, State of Durango, 111 E. Palmer, April, 1896; Saltillo, State of 



Coahuila, 2 E. Palmer, Aj^ril, 1898; Durango, State of Durango, 162 E. Palmer, 



June, 1897. 

 Cinna poseformis (H. B. K.) Scribn. & Merrill, n. comb. {Deyeuxia poceformis 



H. B. K. Nov. Gen. et Sp. PI. 1: 146 (1815); Cinnastrum jjoieforme Fourn. Mex. 



PL 2: 91 (1881).) 

 Sierra de San Felipe, State of Oaxaca, 936 C. L. Smith, August 28, 1894. 

 Agrostis elataTrin. Agrost. 2: 364 (1845). 

 Near Colonia Garcia, in the Sieri-a Madre Mountains, State of Chihuahua, 6195 E. W. 



Nelson, August 1, 1899. 

 AGROSTIS ROSEI Scribn. & Merrill, sp. nov. (Fig. 5.) 

 A slender, erect perennial, 4 to 5 dm. iiigli, with short, flat leaves and very open, 



capillary panicles, 1 to 1.5 dm. long. Culms glabrous, somewhat geniculate at 



