562 GRAMINEA. 
(Humboldt & Bonpland), valley of Orizaba (Schaffner), valley of Oaxaca, near Ejutla 
(Liebmann). 
4. Bouteloua hirsuta, Lag. Elench. p. 5; 8S, Wats. in Proc. Am. Acad. xviii. 
pp. 177 et 178; A. Gr. Man. Bot. Northern U. S. ed. 5, p. 621. 
Chondrosium hirtum, H. B. K. Nov. Gen. et Sp. i. p. 176, t. 59; Kunth, Enum. Pl. i. p. 276, et 
Suppl. p. 231; Fourn. Mex. Pl. Enum., Gram. p. 137. 
Aetinochloa hirsuta, Roem. et Schult. Syst. Veg. ii. p. 149. 
Chondrosium fenum, Torr. in Emory’s Rep. p. 1538, t. 12. 
Wisconsin and Inuiwois to Fiorrpa and Trxas.—Norta Mexico, San Luis Potosi 
(Schaffner, 1018; Parry & Palmer, 943); Sourn Mexico, between Mexico and Gasave 
7000 feet (Humboldt & Bonpland), Orizaba (Schaffner). Hb. Kew. 
5. Bouteloua oligostachya, Torr.; A. Gr. Man. Bot. Northern U. S. ed. 5, 
p. 621; Thurb. in S. Wats. Bot. Calif. ii. p. 291; S. Wats. in Proc. Am. Acad. xviii. 
p. 177. 
Chondrosium oligostachyum, Torr. in Marcy Rep. p. 300. 
Atheropogon oligostachyus, Nutt. Gen. 1. p. 78. 
Chondrosium aschenborinanum, Nees in Linnzea, xix. p. 692 ; Fourn. Mex. Pl. Enum., Gram. p. 137, 
fide S. Wats. loc. cit. 
Chondrosium gracile, H. B. K. Nov. Gen. et Sp. i. p. 176, t. 58; Nees in Linnea, xix. p.692; Peyr. 
in Linnea, xxx. p. 5; Fourn. Mex. Pl. Enum., Gram. p. 187? 
Actinochloa gracilis, Willd.; Roem. et Schult. Syst. Veg. ii. p. 418. 
Atheropogon gracilis, Spreng. Syst. Veg. i. p. 293. 
From the SasKaTCHEWAN to CaLiFornia, ARIZONA, and Texas.—NortH Mexico, region 
of San Luis Potosi (Schaffner, 1014, 1015; Parry & Palmer, 944); Sours Mexico, 
without locality (Coulter, 1625), Tacubaya (Schaffner), Zacoalco near Guadalupe (Bour- 
geau, 448, 666). Hb. Kew. 
6. Bouteloua polystachya, Torr. in Pacif. Rail. Rep. v. p. 366, t. 10; Thurb. 
in S. Wats. Bot. Calif. ii. p. 291; S. Wats. in Proc. Am. Acad. xviii. pp. 177 et 179, 
cum var. vestita. 
Chondrosium parryi, Fourn. Mex. Pl. Enum., Gram. p. 150. 
Chondrosium polystachyum, Benth. Bot. Voy. ‘Sulphur,’ p. 56. 
Chondrosium microstachyum, Fourn. Mex. Pl. Enum., Gram. p. 188? 
SoutHern Utan to Texas and SouTHEeRN CaLirornia.—NortH Mexico, in the Sierra 
Madre, south of Saltillo (Palmer, 1357), region of San Luis Potosi (Schaffner, 1017, 
1019, 1020; Parry & Palmer, 946); Sourn Mexico, valley of Mexico (Bourgeau, 667). 
Hb. Kew. 
7. Bouteloua prostrata, Lag. Elench. p. 5; 8. Wats. in Proc. Am. Acad. xviii. 
p. 176. 
Chondrosium humile, Beauv. Agrostogr. p. 41; H. B. K. Nov. Gen. et Sp. i, p. 175, t. 56; Kunth, 
Enum. Pl. i. p. 276, et Suppl. p. 229. 
