116 MISC. PUBLICATION 4 2 3, U. S. DEPT. OF AGRICULTURE 



3. Muhlenbergia texana Buckl., Acad. Nat. Sci. Phila. Proc. 1862: 



91. 1862. 

 West slope of the Mule Mountains, Cochise County {Goodding 

 CG 28). Open gravelly ground, western Texas to Arizona and north- 

 ern Mexico. 



4. Muhlenbergia depauperata Scribn., Bot. Gaz. 9: 187. 1884. 



Muhlenbergia schaffneri Fourn., Mex. PI. 2: 85. 1886. 



Coconino and Cochise Counties, dry gravelly soil and open grass- 

 land at medium altitudes, August to October, type from Arizona 

 (Pringle). Texas, Colorado, New Mexico, Arizona, and Mexico. 



5. Muhlenbergia filiformis (Thurb.) Rydb., Torrey Bot. Club Bui. 



32: 600. 1905. 



Vilfa depauperata var. filiformis Thurb. ex S. Wats, in King, 

 Geol. Expl. 40th. Par. 5: 376. 1871. 



Apache and Coconino Counties, up to 8,000 feet, meadows and wet 

 places in the mountains. South Dakota and British Columbia, south 

 to Kansas, New Mexico, Arizona, and California. 



6. Muhlenbergia pungens Thurb. in A. Gray, Acad. Nat. Sci. Phila. 



Proc. 1863: 78. 1863. 

 Apache, Navajo, and Coconino Counties, 5,000 to 7,000 feet, com- 

 mon on sandy mesas, July to October. South Dakota and Wyoming 

 to New Mexico and Arizona. 



7. Muhlenbergia arenacea (Buckl.) Hitchc, Biol. Soc. Wash. Proc. 



41: 161. 1928. 



Sporobolus arenaceus Buckl., Acad. Nat. Sci. Phila. Proc. 1862: 



89. 1862. 

 Sporobolus auriculatus Vasey, Contrib. U. S. Natl. Herbarium 



3: 64. 1892. 



Dragoon Mountains (Cochise County), Nogales, Santa Cruz County 

 (Griffiths 1864). Dry mesas, Texas to Arizona and Sonora. 



8. Muhlenbergia asperifolia (Nees and Mey.) Parodi, Rev. Buenos 



Aires Univ. Nac. Facult. Agron. y Vet. 6: 117. 1928. 



Vilfa asperifolia Nees and Mey., Acad. St. Petersb. Mem. VI. 



Sci. Nat. 4 1 : 95. 1840. 

 Sporobolus asperifolius Nees, Nova Acta Acad. Caes. Leop.- 



Carol. Nat. Cur. 19: Sup. 1: 9. 1841: 141. 1843. 



Apache, Navajo, Coconino, Maricopa, and Pima Counties, dry 

 hills or moist ground at medium altitudes, May to October. Wis- 

 consin to British Columbia south to Mexico; southern South America. 



9. Muhlenbergia dumosa Scribn. in Vasey, Contrib. U. S. Natl. Herb- 



arium 3: 71. 1892. 

 Pinal, Maricopa, and Pima Counties, rocky canyon slopes and 

 valleys at low altitudes, March to May, type from the Santa Cata- 

 lina Mountains (Pringle in 1884). Southern Arizona and northwestern 

 Mexico, 



