806 MISC. PUBLICATION 200, U. S. DEPT. OF AGRICULTURE 



Chondrosium subscorpiodes C. Muell., Bot. Ztg. 14: 347. 1856. Baja 



California, Bay-clay. 

 Bouteloua polystachya Torr., U.S. Rept. Expl. Miss. Pacif. 5 2 : 366. pi. 10. 



1857. Based on Chondrosium poly stachy urn Benth. 

 Bouteloua pumila Buckl., Acad. Nat. Sci. Phila. Proc. 1862: 93. 1863. Texas, 



Wright 754. 

 Bouteloua polystachya var. major Vasey, in Wheeler, Rept. U.S. Survey 100th 



Merid. 6: 287. 1878. Sonoyta Valley, Ariz., Rothrock 691. 

 Chondrosium exile Fourn., Mex. PL 2: 137. 1886. Mexico, Berlandier 842. 

 Chondrosium microstachyum Fourn., Mex. PI. 2: 138. 1886. Guadalupe, 



Mexico, Bourgeau 667. 

 Bouteloua arenosa Vasey, in S. Wats., Amer. Acad. Sci. Proc. 24: 81. 1889, 



name only; U.S.Dept.Agr., Div. Bot. Bull. 12 1 : pi. 34. 1890. Guaymas, 



Mexico, Palmer 189. 

 Bouteloua microstachya L.H. Dewey, Contrib. U.S. Natl. Herb. 2: 531. 1894. 



Based on Chondrosium microstachyum Fourn. 

 Bouteloua micrantha Scribn. and Merr., U.S.Dept.Agr., Div. Agrost. Circ. 32: 8. 



1901. Fort Lowell, Ariz., Griffiths 1556. 

 (15) Bouteloua breviseta Vasey, Contrib. U.S. Natl. Herb. 1: 58. 1890. (July 



18.) Screw Bean, Presidio County, Tex., Nealley [669]. 

 Bouteloua ramosa Scribn.; Vasey, U.S.Dept.Agr., Div. Bot. Bull. 12 1 : pi. 44. 



1890. (Oct. 13.) Mexico to Arizona and western Texas, [type, Nealley]. 

 Bouteloua oligostachya var. ramosa Scribn.; Beal, Grasses N.Arner. 2: 418. 



1896. Based on B. ramosa Scribn. 

 (6) Bouteloua chondrosioides (H.B.K.) Benth.; S. Wats., Proc. Amer. Acad. 



18:179. 1883. Based on Dinebra chondrosioides H.B.K. 

 Dinebra chondrosioides H.B.K., Nov. Gen. and Sp. 1: 173. pi. 53. 1816. 



Michoacan, Mexico, Humboldt and Bonpland. 

 Bouteloua ovata Lag., Gen. and Sp. Nov. 5. 1816. Mexico. 

 Atheropogon chondrosioides Roem. and Schult., Syst. Veg. 2: 416. 1817. 



Based on Dinebra chondrosioides H.B.K. 

 Actinochloa ovata Roem. and Schult., Syst. Veg. 2: 420. 1817. Based on 



Bouteloua ovata Lag. 

 Eutriana cristata Trim, Gram. Unifl. 241. 1824. Based on Atheropogon 



chondrosioides Roem. and Schult. 

 Chondrosiiwi humboldtianum Kunth, Rev. Gram. 1: 93. 1829. Based on 



Dinebra chondrosioides H.B.K. 

 Bouteloua havardii Vasey; S. Wats., Amer. Acad. Sci. Proc. 18: 179. 1883. 



Limpio Mountains, Tex., Havard in 1881. 

 (3) Bouteloua curtipendula (Michx.) Torr., in Emory, Notes Mil. Reconn. 154. 



1848. Based on Chloris curtipendula Michx. 

 Chloris curtipendula Michx., Fl. Bor. Amer. 1: 59. 1803. Illinois, Michaux. 

 Bouteloua racemosa Lag., Var. Cienc. 2 4 : 141. 1805. Mexico. 

 Bouteloua pendula Lag., Var. Cienc. 2 4 : 141. 1805, as synonym of B. racemosa. 

 Atheropogon apludoides Muhl.; Willd., Sp. PL 4: 937. 1806. North America. 

 Bouteloua melicaeformis Brouss.; Hornem., Enum. PL Hort. Hafn. 7. 1807. 



Name only; Roem. and Schult., Syst. Veg. 2: 414. 1817, as synonym of 



Atheropogon apludoides Muhl. 

 Bouteloua melicoides Beauv., Ess. Agrost. 40, 155. pi. 9. f. 6. 1812. Based 



on B. melicoides Hornem., doubtless error for melicaeformis. 

 Dineba curtipendula Beauv., Ess. Agrost. 98, 158, 160. pi. 16. f. 1. 1812. 



Presumably based on Chloris curtipendula Michx. 

 Dineba melicoides Beauv., Ess. Agrost. 160. 1812, name only, probably same 



as Bouteloua melicoides Beauv. 

 Cynosurus secundus Pursh, FL Amer. Sept. 2: 728. 1814. "Upper Louisiana" 



[northern Middle Western States], Bradbury. 

 Atheropogon racemosus Roem. and Schult., Syst. Veg. 2: 414. 1817. Based 



on Bouteloua racemosa Lag. 

 Dineba secunda Roem. and Schult., Syst. Veg. 2: 711. 1817. Based on 



Cynosurus secundus Pursh. 

 Aristida secunda Rud. ; Roem. and Schult., Syst. Veg. 2: 711. 1817, as synonym 



of Dineba secunda Roem. and Schult. 

 Eutriana curtipendula Trim, Fund. Agrost. 161. 1820. Based on Chloris 



curtipendula Michx. 

 Melica curtipendula Michx.; Steud., Nom. Bot. 1: 91, 519. 1821, as synonym 



of Atheropogon apludoides Muhl. 



