‘GRAMINEA. 593 
Acad. Brux. ix. (reprint, p. 3); Trin. Agrostidea, ii. p. 11; Nees, Agrostol. p. 416; 
Fourn. Mex. Pl. Enum., Gram. p. 91. 
Raspailia agrostoides, Presi, Relig. Henk. p. 239, t. 40. 
Nowodworskya agrostoides, Presl, loc. cit. p. 351. 
Nortn Mexico, San Luis Potosi (Virlet d’ Aoust) ; Sovura Mexico, common (Bourgeau, 
3135, 3329; Galeotti, 5760, 5807; Miller, 2097).—CoLomBia to Cait and BUENOS 
Ayres. Hb. Kew. 
3. Polypogon mexicanus, Schl. Hort. Hal. 1842, ex Steud. Gram. p. 185; 
Fourn. Mex. Pl. Enum., Gram. p. 92. 
Sout Mexico, Tacubaya (Schaffner). 
57. ACHATA. 
Acheta, Fourn. Mex. Pl. Enum., Gram. p. 109; Benth. et Hook. Gen. Plant. iii. p. 1153, sub 
Deyeuxia. 
Limited to the following species, which, from the description, Bentham referred to 
_ Deyeuxia, but we prefer not giving names to them under that genus without seeing 
them. 
1. Acheta geniculata, Fourn. Mex. Pl. Enum., Gram. p. 109. 
Sours Mexico, without locality (Liebmann). 
2. Achzeta plumosa, Fourn. Mex. Pl. Enum., Gram. p. 109. 
Sours Mexico, peak of Orizaba at 10,000 feet (Liebmann). 
58. DEYEUXIA. 
Deyeuzxia, Clarion in Beauv. Agrostogr. p. 43, t. 9. figg. 9 & 10; Benth. et Hook. Gen. Plant. iii. 
p. 1152. | 
Lachnagrostis, Trin. Fund. Agrostogr. p. 128, et Sp. Gram. Ic. et Descr. tt. 242 et 248. 
A genus of nearly 120 species, very widely dispersed in temperate regions, including 
mountains within the tropics, and extending into both the north and the south frigid 
zones ; most numerous in the Andes. 
1. Deyeuxia eriantha, H. B. K. Nov. Gen. et Sp. i. p. 145; Kunth, Enum. 
Pl. i. p. 240, et Suppl. p. 187; Ch. et Schl. in Linnea, vi. p. 37; Fourn. Mex. PI. 
Enum., Gram. p. 105. 
Calamagrostis eriantha, Steud. Gram. p. 190. 
_ Sovuts Mexico, mountains between Mexico and Tezcuco at 7000 feet (Humboldt & 
Bonpland), near Jalapa (Schiede). 
2. Deyeuxia evoluta, Fourn. Mex. Pl. Enum., Gram. p. 106. 
South Mexico, Mirador (Liebmann), Orizaba (Thomas), Orizaba at 11,000 feet 
(Liebmann). . 
BIOL. CENTR.-AMER., Bot. Vol. III., November 1885. 4b 
