118 



17. Muhlenbergia racemosa (Michx.) B. S. P., Prelim. Cat. N. Y. 67. 



1888. 



Agrostis racemosa Michx., Fl. Bor. Amer. 1: 53. 1803. 



Apache and Coconino Counties, 4,000 to 8,000 feet, moist ground 

 in canyons and meadows, June to September. Newfoundland to 

 British Columbia, south to Maryland, Kentucky, Oklahoma, and 

 Arizona. 



18. Muhlenbergia foliosa (Roem. and Schult.) Trim, Gram. Unifl. 



190. 1824. 



Agrostis foliosa Roem. and Schult., Syst. Veg. 2: 373. 1817. 



Chiricahua Mountains, Cochise County, in springy soil along creek, 

 5,500 feet (Blumer 1784). Maine and Quebec to Washington, south 

 to North Carolina, Arkansas, New Mexico, and Arizona. 



19. Muhlenbergia sylvatica Ton*, ex Trin., Acad. St. Petersb. Mem. 



VI. Sci. Nat. 4 l : 292. 1841. 



Agrostis sylvatica Torr., Fl. North, and Mid. U. S. 1: 87. 1823. 



Grapevine Creek, Grand Canyon (Tourney 169). Moist woods, 

 Maine to South Dakota, south to Alabama, Texas, and Arizona. 



20. Muhlenbergia wrightii Vasey in Coulter, Man. Rocky Mount. 



409. 1895. 

 Apache, Coconino, Yavapai, and Pima Counties, plains and open 

 slopes at medium altitudes, July to October. Colorado and Utah to 

 northern Mexico. 



21. Muhlenbergia rigens (Benth.) Hitchc, Wash. Acad. Sci. Jour. 23: 



453. 1933. 



Epicampes rigens Benth., Linn. Soc. London Jour. Bot. 19: 88. 

 1881. 



Apache, Coconino, Pinal, Cochise, and Pima Counties, open slopes, 

 canyons, and forests, July to October. Texas to southern California 

 and northern Mexico. 



22. Muhlenbergia longiligula Hitchc, Amer. Jour. Bot. 21: 136. 1934. 



Epicampes ligulata Scribn. in Vasey, Contrib. U. S. Natl. 



Herbarium 3: 58. 1892. 

 Epicampes distichophylla var. mutica Scribn. in Beal, Grasses 



North Amer. 2: 308. 1896. 



Apache, Navajo, Coconino, Graham, Cochise, and Pima Counties, 

 up to 8,500 feet, canyons and rocky slopes, July to October, type from 

 the Santa Rita Mountains (Pringle in 1884). Western New Mexico, 

 Arizona, southern Nevada, and northern Mexico. 



23. Muhlenbergia dubioides C. O. Goodding, Wash. Acad. Sci. 



Jour. 30: 20. 1940. 

 Santa Rita and Santa Catalina Mountains (Pima County), type 

 from Box Canyon (Silveus 3490). Known only from these localities. 



24. Muhlenbergia montana (Nutt.) Hitchc, U. S. Dept. Agr. Bui. 



772: 145, 147. 1920. 



Calycodon montanum Nutt., Acad. Nat. Sci. Phila. Jour. ser. 

 2, 1: 186. 1848. 



