FLOWERING PLANTS AND FERNS OF ARIZONA 171 



2. Carex eleocharis L. H. Bailey, Torrey Bot. Club Mem. 1: 6. 1889. 

 Lukachukai Mountains (Apache County), Kayenta or Tyende 



(Navajo County), Grand Canyon (Coconino County), 6,000 to 8,000 

 feet, rare. Manitoba to Yukon, south to Iowa, New Mexico, Arizona, 

 and Oregon. 



3. Carex simulata Mackenz., Torrey Bot. Club Bui. 34: 604. 1908. 

 Willow Spring, southern Apache County, 7,200 feet {Palmer 553). 



Montana to Washington, south to New Mexico, Arizona, and Cali- 

 fornia. 



4. Carex praegracilis W. Boott, Bot. Gaz. 9: 87. 1884. 



Carex latebrosa Mackenz., Torrey Bot. Club Bui. 34: 603. 1908. 

 Carex camporum Mackenz., Torrey Bot. Club Bui. 37: 244. 

 1910. 



Apache County to Mohave County, south to Pima and Cochise 

 Counties, 7,000 to 8,000 feet (?) , rather common. Manitoba to Yukon, 

 south to central Mexico and California; South America. 



This is a very variable species, and is one of the most widespread 

 in the western United States. It is sometimes confused with C. 

 siccata Dewey, but that species has slender brown rootstocks, whereas 

 C. praegracilis has stout blackish rootstocks. 



5. Carex siccata Dewey, Amer. Jour. Sci. 10: 278. 1826. 



Apache, Coconino, Yavapai, Greenlee, and Cochise Counties, 8,000 

 to 11,500 feet, rather common. Maine to Mackenzie and Washing- 

 ton, south to New Jersey, Illinois, New Mexico, and Arizona. 



6. Carex rusbyi Mackenz., Smithsn. Inst. Misc. Collect. 65 7 : 2. 1915. 

 Graham County to Coconino County, south to Cochise, Santa Cruz, 



and Pima Counties, 7,000 to 9,500 feet, fairly common, especially in 

 the southeastern part of the State, type from Yavapai County (Rusby 

 859) . New Mexico and Arizona. 



7. Carex occidentalis L. H. Bailey, Torrey Bot. Club Mem. 1: 14. 



1889. 



Carex neomexicana Mackenz., Torrey Bot. Club Bui. 34: 153. 

 1907. 



Apache County to Coconino County, south to Cochise and Pima 

 Counties, 8,300 to 9,200 feet, common, especially in Coconino County. 

 Wyoming and Utah to New Mexico and Arizona. 



This species is related to C. rusbyi, but may be distinguished at once 

 by its larger spikes and by the fact that its perigynia are hidden by the 

 scales, not exposed as in C. rusbyi. 



8. Carex alma L. H. Bailey, Torrey Bot. Club Mem. 1 : 50. 1889. 

 Gila, Maricopa, and Cochise Counties, 2,000 to 6,000 feet, not rare. 



Arizona, Nevada, and California. 



9. Carex agrostoides Mackenz., Torrey Bot. Club Bui. 34: 607. 190S. 

 Gila, Maricopa, Cochise, and Pima Counties, 3,800 to 5,000 feet. 



New Mexico, Arizona, and northern Mexico. 



This species has about the same range as C. alma and is related to it, 

 but may be distinguished by its lighter colored spikes and much lighter 

 colored perigynia. 



