524 GRAMINEA. 
All that Fournier says concerning this is :—“ Differt a 7. montufari ligula longiore 3" 
longa, arista validiore torta bis geniculata.” 
40. HETEROPOGON. 
Heteropogon, Pers. Syn. Pl. ii. p. 533; Benth. et Hook. Gen. Plant. iii. p. 1183. 
About half a dozen species in the warmer regions of Europe, Asia, Africa, and 
Australia; two of the Old-World species recurring in America. 
1. Heteropogon acuminatus, Trin. in Mém. Acad. Sc. St. Pétersb. sér. 6, ii. 
1833, p. 254, ex Hack. in Mart. Fl. Bras. ii. 3, p. 268. 
Heteropogon scrobiculatus, Fourn. Mex. Pl. Enum., Gram. p. 64. 
Andropogon melanocarpus, Elliott, Sketch, i. p. 146; Chapm. Fl. Southern U. S. p. 582. 
Cymbopogon melanocarpus, Spreng. Syst. Veg. i. p. 289. 
Trachypogon scrobiculatus, Nees, Agrostol. Bras. p. 347. 
Andropogon scrobiculatus, Kunth, Enum. Pl. i. p. 507; Steud. Gram. p. 381. 
Fiorma; Groreia.—Sovuta Mexico, Orizaba (Miller, 2086; Schaffner).—CoLomBla 
to Perv and BRaziL. 
This species is also recorded from the East Indies. 
2. Heteropogon contortus, Rem. et Schult. Syst. Veg. ii. p. 836; Nees in 
Linnea, vii. p. 284, et xix. p. 695; Presl, Reliq. Henk. i. p. 334; Fourn. Mex. Pl. 
Enum., Gram. p. 64; Hack. in Mart. Fl. Bras. ii. 3, p. 267. 
Andropogon contortus, Linn. Sp. Pl. p. 1480; Kunth, Enum. Pl. 486; Benth. Pl. Hartw. p. 28. 
Andropogon allionii, DC. Fl. Frane. iii. p. 97; H. B. K. Nov. Gen. et Sp. i. p. 185. 
Heteropogon hirtus et H. glaber, Pers. Syn. Pl. 11. p. 533. 
This species covers nearly the whole area of the genus, and is apparently common in 
Mexico and Centrat America. It is found in the Southern States of North America, 
as well as the West Indies and South America. Hb. Kew. 
3. Heteropogon firmus, Presl, Reliq. Henk. i. p. 334; Fourn. Mex. Pl. Enum., 
Gram. p. 65. 
Andropogon firmus, Kunth, Enum. Pl. i. p. 486. 
Mexico (Henke). 
This is probably nothing more than H. contortus. 
41, ANDROPOGON. 
Andropogon, Linn. Gen. Plant. n. 1145; Benth. et Hook. Gen. Plant. ii. p. 1138. 
Bentham and Hooker estimate the number of distinct species of this genus at barely 
100, though many more forms have been described as species. They are generally 
diffused in the warmer regions, and a few reach the south of Europe, temperate Eastern 
Asia, and North America. Fournier has described a considerable number of proposed 
new Mexican species, of which we have seen no authentic specimens, therefore they are 
here retained on his sole authority. 
