246 MISC. PUBLICATION 42 3, U. S. DEPT. OF AGRICULTURE 



6. Eriogonum polycladon Benth. in DC, Prodr. 14: 16. 1856. 



Erigonum vimineum Dougl. subsp. polycladon Stokes, Gen. 

 Eriog. 53. 1936. 



Yavapai and Mohave Counties to Cochise, Santa Cruz, and Pima 

 Counties, 2,400 to 5,500 feet, June to November. Western Texas to 

 Arizona and northern Mexico. 



Sorrel eriogonum. So common at roadsides and in washes, espec- 

 ially in southern Arizona, as to color the landscape in places with its 

 tall gray stems and pink flowers. 



7. Erigonum angulosum Benth., Linn. Soc. London Trans. 17: 406. 



1837. 

 Yavapai and Mohave Counties to Graham, Pinal, Maricopa, and 

 Pima Counties, 4,500 feet or (usually) lower, April to June. Idaho 

 and eastern Washington to Arizona and Baja California. 



8. Eriogonum salsuginosum (Nutt.) Hook., Jour. Bot. and Kew 



Gard. Misc. 5: 264. 1853. 



Stenogonum salsuginosum Nutt., Acad. Nat. Scl. Phila. Jour, 

 ser. 2, 1: 170. 1848. 



Apache and Navajo Counties, 5,000 to 6,000 feet, apparently rare, 

 June to September. Wyoming to Utah, New Mexico, and north- 

 eastern Arizona. 



9. Eriogonum abertianum Torr. in Emory, Mil. Eeconn. 151. 1848. 

 Coconino and Yavapai Counties to Cochise, Santa Cruz, and Pima 



Counties, 1,500 to 7,000 feet, foothills and mountains, very common, 

 March to September. Western Texas to Arizona and Chihuahua. 



Several varieties have been distinguished recently by Fosberg. 36 

 Of these, the 3 following are credited to Arizona: var. neomexicanum 

 Gandoger (E. pinetorum Greene), characterized by a paniculate in- 

 florescence with inconspicuous, not leafy bracts, found in southern 

 Greenlee, southern Yavapai, Cochise, and Pima Counties; var. 

 villosum Fosberg with the inflorescence leafy, not paniculate, found in 

 Gila, Cochise, Santa Cruz, and Pima Counties; and var. gillespiei 

 Fosberg, similar to var. villosum in the type of inflorescence but with 

 the upper leaves more reduced and bractlike, and the basal leaves 

 shorter-petioled and attenuate (instead of truncate or cordate) at 

 base, the tvpe from Apache Gap, Pinal County, 2,500 feet (Gillespie 

 8797). 



10. Eriogonum pharnaceoides Torr. in Sitgreaves, Zuni and Colo. 



Rpt. 167. 1854. 



Eriogonum arizonicum Gandoger, Soc. Roy. Bot. Belg. Bui. 

 42 2 : 186. 1905. 



Apache, Navajo, and Coconino Counties, south to Cochise and 

 Pima Counties, 4,500 to 7,000 feet, frequent in pine woods, July to 

 October, type of E. arizonicum Gandoger from near Bill Williams 

 Mountain, Coconino County (MacDougal 311). Utah, New Mexico, 

 and Arizona. 



Fosberg, F. Raymond, eriogonum abertianum and its varieties. Madrono 4: 189-194. 1938. 



