GRAMINE. 563 
Actinochloa prostrata, Reem. et Schult. Syst. Veg. ii. p. 419. 
Actinochloa humilis, Roem. et Schult. loc. cit. p. 417? 
Atheropogon humilis, Spreng. Syst. Veg. i. p. 293 ? 
Chondrosium tenue, var. 8, Fournier, Mex. Pl. Enum., Gram. p. 138? 
New Mexico.—Norra Mexico, Monclova, Coahuila (Palmer, 1358), San Luis Potosi 
(Schaffner).—CotomBia; Ecuador. Hb. Kew. 
This species and B. tenuis seem to have been interchanged by Fournier and Watson. 
The former regards B. prostratum as a variety of B. tenuis, and refers Bourgeau’s 751 
to typical tenuis, while the latter treats the two as distinct species, and refers Bour- 
geau’s 751 to B. prostrata. 
8. Bouteloua racemosa, Lag. Elench. p. 5; Benth. in Journ. Linn. Soc. xix. 
p. 104; S. Wats. in Proc. Am. Acad. xviii. p. 177. 
Eutriana curtipendula, Trin. Fund. Agrostogr. p. 161; Kunth, Enum. Pl. i. p. 280. 
Chloris curtipendula, Michx. Fl. Bor.-Am. i. p. 59; Jacq. Eclog. Gram. t. 7. 
Atheropogon apludioides, Muehlenb.; Willd. Sp. Pl. iv. p. 937. 
Bouteloua curtipendula, A. Gr. Man. Bot. Northern U.S. ed. 5, p. 621. 
Dinebra curtipendula, DC. Cat. Hort. Monsp. p. 105. 
Cynosurus secundus, Pursh. Fl. Am. Sept. ii. p. 728. 
Atheropogon curtipendulus, Fourn. Mex. Pl. Enum., Gram. p. 188. 
Erucaria glabra, V. Cerv. in La Naturaleza, Nov. 1870, p. 347, e descript. ex Fournier, loc. cit. 
New York to Wisconsin and southward to Trxas.—Norts Mexico, San Luis Potosi 
(Schaffner, 1061); Sovrn Mexico, Real del Monte (Coulter, 1653), region of Orizaba 
(Bourgeau, 2755; Miller, 2081), Tacubaya (Schaffner), Santa Fé, valley of Mexico 
(Bourgeau, 451), Guanajuato at 7300 feet (Humboldt & Bonpland), Tehuacan and 
Potrero de Consoquitla (Liebmann). Hb. Kew. 
9. Bouteloua scorpioides, Lag. Elench.?; S. Wats. in Proc. Am. Acad. xviii. 
p. 176. 
Chondrosium? scorpioides, Kunth, Revis. Gram. i. p. 94, et Enum. Pl. i. p. 277. 
Actinochloa? scorpioides, Roem. et Schult. Syst. Veg. ii. p. 420. 
Atheropogon scorpioides, Spreng. Syst. Veg. 1. p. 298. 
Nortu Mexico, San Luis Potosi (Schaffner, 1010). 
This is a very obscure species, and it is quite uncertain whether the North-Mexican 
specimens are correctly referred to it. Fournier cites the name under tenuis, but 
without the sign of certainty. 
10. Bouteloua tenuis, S. Wats. in Proc. Am. Acad. xviii. p. 76, vix Griseb. Pl. 
Lorentz, p. 211, et Symb. Fl. Arg. p. 303. 
Chondrosium tenue, Beauv. Agrostogr. p. 41; H.B.K. Nov. Gen. et Sp. i. p. 176, t. 57; Kunth, 
Enum. Pl. i. p. 276; Fourn. Mex. Pl. Enum., Gram. p. 138, pro parte. 
Actinochloa tenuis, Roem. et Schult. Syst. Veg. ii. p. 418. 
Nortu Mexico, San Luis Potosi (Schaffner, 1013); Sourn Mexico, near Mexico and 
San Augustin de las Cuevas at 6950 feet (Humboldt & Bonpland). Hb. Kew. 
4¢2 
