FLOWERING PLANTS AND FERNS OF ARIZONA 117 



10. Muhlenbergia repens (Presl) Hitchc. in Jepson, Fl. Calif. 1: 111. 

 1912. 



Sporobolus repens Presl, Reliq. Haenk. 1: 241. 1830. 

 Apache, Pima, and Santa Cruz Counties, dry open rocky or sandy 

 ground, April to September. Texas to Arizona and Mexico. 



*11. Muhlenbergia utilis (Torr.) Hitchc, Wash. Acad. Sci. Jour. 23: 

 453. 1933. 



Vilfa utilis Torr., U. S. Rpt. Expl. Miss. Pacif. 5 2 : 365. 1857. 



Arizona specimens previously referred to M. utilis are M. repens. 



12. Muhlenbergia richardsonis (Trin.) Rvdb., Torrey Bot, Club Bui. 



32: 600. 1905. 



Vilfa richardsonis Trin., Acad. St. Petersb. Mem. VI. Sci. 



Nat. 4 1 : 103. 1840. 

 Muhlenbergia squarrosa (Trin.) Rydb., Torrey Bot. Club Bui. 



36: 531. 1909. 



Vicinity of Flagstaff and Kaibab Plateau (Coconino County), low 

 open ground. New Brunswick to Alberta, south to South Dakota, 

 New Mexico, Arizona, California, and Mexico. 



13. Muhlenbergia thurberi Rydb., Torrey Bot. Club Bui. 32: 601. 



1905. 



Sporobolus thurberi Scribn., U. S. Dept. Agr., Div. Agrost. Bui. 



11: 48. 1898. 

 ^Muhlenbergia curtifolia var. griffithsii Scribn., Torrey Bot. 



Club Bui. 38: 328. 1911. 



Apache County, about 6,000 feet, dry slopes and sandy ground, 

 July to September. Texas, New Mexico, and Arizona. 



14. Muhlenbergia curtifolia Scribn., Torrev Bot, Club Bui. 38: 328. 



1911. 

 Apache and Coconino Counties, 7,500 to 8,000 feet, moist or rocky 

 open slopes, July to August, rare. Utah, Nevada, and Arizona. 



15. Muhlenbergia glauca (Nees) Mez, Repert. Spec. Novarum Regni 



Veg. 17: 214. 1921. 



Podosaemum glaucum Nees, Linnaea 19: 689. 1847. 



Muhlenbergia lemmoni Scribn. in Coulter, Contrib. U. S. Natl. 

 Herbarium 1: 56. 1890. 



Muhlenbergia huachucana Vasey, Contrib. U. S. Natl. Her- 

 barium 3: 69. 1892. 



Dry rocky slopes of the Huachuca and Mule Mountains (Cochise 

 County), about 5,000 feet, Western Texas to California and Mexico. 



16. Muhlenbergia andina (Nutt.) Hitchc, U. S. Dept. Agr. Bui. 772: 



145. 1920. 

 Calamagrostis andina Nutt., Acad. Nat. Sci. Phila. Jour. ser. 



2, 1: 187. 1848. 

 Muhlenbergia comata Thurb. ex Benth., Linn. Soe. London 

 Jour. Bot. 19: 83. 1S81. 

 Apache, Navajo, and Coconino Counties, 6.000 to 9.000 fool, moist 

 open ground, August to September. Montana and Washington to 

 New Mexico, Arizona, and California. 



