GRAMINEA. 561 
1. Bouteloua aristidoides, Griseb. Fl. Brit. W. Ind. p. 537; Thurb. in S. 
Wats. Bot. Calif. ii. p.291; Benth. in Journ. Linn. Soc. xix. p.104; S. Wats. in Proc. 
Am. Acad. xviii. pp. 178 et 180. 
Dinebra aristidoides, H. B. K. Nov. Gen. et Sp. i. p. 171, et vii. t. 695. 
Eutriana aristidoides, Kunth, Revis. Gram. i. p. 95, Enum. Pl. i. p. 280, et Suppl. p. 233. 
Atheropogon aristidoides, Roem. et Schult. Syst. Veg. ii. p. 415; Fourn. Mex. Pl. Enum., Gram. 
p. 189. 
New Mexico to SoutHeRN CaLirornia.—NortH Mexico, Soledad, Coahuila (Palmer, 
1353), region of San Luis Potosi (Schaffner, 1062; Parry & Palmer, 941); Sourn 
Mexico, Toluca at 7000 feet (Humboldt & Bonpland), Puerto de Santa Cruz, Oaxaca,. 
“in arena littorali” (Liebmann). Hb. Kew. 
2. Bouteloua bromoides, Lag. Elench. p.5 ; S. Wats. in Proc. Am. Acad. xviii. 
pp. 177 et 179. 
Dinebra bromoides, H. B. K. Nov. Gen. et Sp. i. p. 172, t. 51. 
Atheropogon bromoides, Roem. et Schult. Syst. Veg. ii. p. 415; Fourn, Mex. Pl. Enum., Gram~- 
p- 140. 
Eutriana bromoides, Kunth, Revis. Gram. i. p. 95, et Enum. Pl. i. Suppl. p. 234. 
Atheropogon americanus, Fourn. loc. cit. ? 
Dinebra repens, H. B. K. Nov. Gen. et Sp. 1. p. 172, t. 52. 
Atheropogon repens, Roem. et Schult. Syst. Veg. ii. p. 416; Fourn. loc. cit. 
Eutriana repens, Kunth, Revis. Gram. i. p. 95, Enum. Pl. i., Suppl. p. 235 ; Nees in Seem. Bot. Voy, 
‘ Herald,’ p. 225. 
Heterostega juncifolia, Desv.; H. B. K. loc. cit. p. 173, t. 54, ex S. Wats. sed vix. 
Bouteloua humboldtiana, Griseb. ex 8. Wats. 
Atheropogon radicosus, Fourn. loc. cit. ? 
Texas to Arizona.—NortH Mexico, Caracol Mountains, Coahuila (Palmer, 1354), 
region of San Luis Potosi (Schaffner, 1001 to 1003), Vera Cruz (Galeotti, 5704), 
Zocoalco, near Guadalupe, valley of Mexico (Bourgeau, 534), Guanaxuato (Humboldt & 
Bonpland), Ocotlan, Ejutla, and Mecoatlan (Liebmann); Nicaracua (Lévy); Panama 
(Seemann). Hb. Kew. 
The synonymy of this and some of the other species is still somewhat involved. We 
have followed Watson ; but there seem to have been two species confused under the 
names Dinebra bromoides, H. B. K., and Euériana bromoides, Trin. (Fund. Agrost. p. 161). 
Kunth cites the latter as a synonym of Eutriana juncifolia and Atheropogon juncifolius. 
3. Bouteloua chondrosioides, Griseb. ex Fourn. Mex. Pl. Enum., Gram. p. 136 ; 
S. Wats. in Proc. Am. Acad. xviii. p. 179. 
Chondrosium humboldtianum, Kunth, Revis. Gram. i. p. 938, Enum. Pl. i. p. 276, et Suppl. p. 231. 
Dinebra chondrosioides, H. B. K. Nov. Gen. et Sp. i. p. 173, t. 53. 
_ Spartina humilis, Willd. ex Trin. Gram. Unifl. p. 164. 
Bouteloua ovata, Lag. Elench. p. 5? 
Actinochloa ovata, Roem. et Schult. Syst. Veg. ii. p. 420? 
Norra Mexico, San Luis Potosi ( Virlet d’ Aoust), Valladolid in Michoacan at 6000 feet. 
BIOL. CENTR.-AMER., Bot. Vol. III., November 1885. 4e 
