GRIFFITHS—THE GRAMA GRASSES. 419 
36. Bouteloua curtipendula (Michx.) Torr. 
Chloris curtipendula Michx. Fl. Bor, Amer, 1: 59, 1803, The type, collected in 
Tllinois, is in the Michaux Herbarium. 
Bouteloua racemosa Lag. Var. Cienc. 24: 141. 1805. Lagasea cites Chloris eurtipen- 
dula as a synonym in his later paper.“ 
Boutelowa pendula ‘““H. R. M.”’ Lag. Var. Cienc. 24: 141, 1805, A garden name 
published as a synonym of B. racemosa. . 
Atheropogon apludioides Muhl.; Willd. Sp. Pl. 4: 937. 1806; Jacq. Eclog. Gram. 
8. pl. 7. 1814; Roem & Schult. Syst. Veg. 2:4138, 1817; Spreng. Syst. Veg. 1:293. 
1825. A good list of correctly referred synonyms is given by Jacquin. 
Bouteloua melicaeformis Brauss.; Hornem. Enum, Pl. Hort. Hafn. 7. 1807. I fol- 
low Roemer and Schultes,> who place this as a synonym under Atheropogon apludi- 
oides. Only a name is listed. 
Bouteloua melicoides Beauv. Ess, Agrost. 40. pl. 9. f. 6. 1812. Based upon ‘‘ Bout. 
melicoides Horn.”’ (evidently an error for ‘‘melicaeformis”). Beauvois’s figures, 
however, do not apply to B. curtipendula. They resemble more closely some species 
of the B. procumbens group. In his private copy of the Agrostographie Beauvois has 
written in his own hand ‘‘=Atheropogon apludioides.’’ This name was later listed, 
with Muhlenberg as the author, by Steudel¢ as a synonym of Atheropogon apludioides. 
Dineba curtipendula Beauv. Ess. Agrost. 98, 160. 1812. Presumably based upon 
Chloris curtipendula Michx., though Beauvois erroneously cites ‘‘Melica curtipendula 
Micu.’”’ See also DC. Cat. Hort. Monsp. 105. 1813 (where the generic name is spelled 
“Dinebra”); H. B. K. Nov. Gen. & Sp. 1: 171. 1816; Presl. Rel. Haenk. 1: 292. 1830. 
Dineba melicoides ? Beauv. Ess. Agrost. 160, 1812. A name only, given in the index. 
Atheropogon racemosus Roem. & Schult. Syst. Veg. 2:414. 1817. Based upon 
Bouteloua racemosa Lag, 
Eutriana curtipendula Trin, Fund. Agrost. 161. 1820. Based upon Chloris curtipen- 
dula Michx. See also Steud. Syn. Pl. Glum. 1: 215. 1854. 
Melica ecurtipendula Michx.; Steud. Nom. Bot. 1:91, 519. 1821. Based upon 
Chloris curtipendula Michx. This name was earlier erroneously given by Beauvois 
(see above under Dineba eurtipendula). 
Bouteloua curtipendula Torr. in Emory, Mil. Reconn. 154. 1848; U. 8. Dept. Agr. 
Div. Bot, Bull. 12!: pl. 43.1890; Britt. & Brown, Illust. Fl. 1: 180. /. 413. 1896; U.S. 
Dept. Agr. Div. Agrost. Bull. 7: 213. f. 195. 1897. 
Eutriana affinis Hook. f. Trans. Linn. Soc. Bot. 20: 174, 1851; Steud. Syn. Pl. Glum. 
1: 215. 1854. The original description states that this is closely allied to E. curtipen- 
dula. Our present conception of this species would include the form described by 
Hooker. It is said to be identical with Atheropogon apludioides, Heterostegon curtipen- 
dulus, and Eutriana curtipendula of Schweinitz in the Hooker Herbarium. It is based 
upon Drummond specimens from Missouri and Texas. 
Heterostegon curtipendulus Schwein.; Hook. f. Trans. Linn. Soc. Bot. 20: 175. 1851. 
A name only. 
Bouteloua curtipendula aristosa A. Gray, Man. Bot. ed. 2. 553. 1856. This is the 
typical form in the mountains of the Southwest, but even there the awns often drop off 
toward maturity. One can establish many varieties in any of these species if he 
choose, but it appears better not to recognize this form as a subspecies. 
Atheropogon curtipendulus Fourn. Mex. Pl. 2: 138, 1881. Based upon Bouteloua 
eurtipendula A. Gray. Schaffner 535 and Bourgeau 2755, cited by Fournier, are in the 
herbarium of the St. Petersburg Botanical Garden. 
aGen. & Sp. Nov. 5.1816. Syst. Veg. 2: 414.1817. ¢Nom. Bot. 1: 117, 1821. 
