FLOWERING PLANTS AND FERNS 01 ARIZONA 899 



2. Involucre densely pubescent, it.-; glands obscure or none; plant- canescent 

 or grayish green (3). 

 3. Plant canescent; leaves elliptic to obovate, usually not distinctly petioled, 

 subsericeous-canescent __ 2. C. foliosa. 



3. Plant grayish-green; leaves usually spatulate or spatulate-obovate and 



distinctly petioled 3. C. villosa. 



2. Involucre distinctly glandular, the longer eglandular hairs usually few or 

 none I 4 . 



4. Heads leafy-bracted; leaves mostly elliptic or oblong, sessile, green, the 



middle ones 2 to 4 cm. long, the lowest leaves obovate or oblanceolate; 



involucre glandular and hirsute 4. C. fulcrata. 



4. Heads rarely leafy-bracted; leaves chiefly obovate or the lower ones spatu- 



late-oblanceolate, narrowed to a petiolelike base, 2.5 cm. long or less 



(5). 



5. Stem and involucre sparsely glandular 5. C. hispida. 



5. Stem and involucre densely glandular, with few long eglandular hairs. 



6. C. VISCIDA. 



1. Chrysopsis rutteri (Rothr.) Greene, Ervthea 2: 9G. 1894. 



Chrysopsis viUosa var. ruMeri Rothr. in Wheeler, U. S. Survey 



West 100th Merid. Rpt, 6: 142. 1878. 



Western Cochise and Santa Cruz Counties, about 5,000 feet, dry 

 plains and mesas, August to October, type from the Sonoita Valley 

 (Rothrock 662). Known only from southeastern Arizona. 



2. Chrysopsis foliosa Xutt., Amer. Phil. Soc. Trans, ser. 2, 7: 316. 



1840. 

 White Mountains (southern Apache and Navajo Counties), Pin- 

 al eno Mountains (Graham County), Pine Creek and Pinal Mountains 

 (Gila County), 4,500 to 8,300 feet, plains and canyons, August to 

 October. Minnesota to Washington, south to central Arizona. 



3. Chrysopsis villosa (Pursh) Xutt. ex DC, Prodr. 5: 327. 1836. 



Amelias villosus Pursh, Fl. Amer. Sept. 564. 1814. 



Apache, Navajo, and Coconino Counties, south to Pima County, 

 1,700 to 7,000 feet, dry slopes, mesas, and plains, May to October. 

 Minnesota to Saskatchewan, south to Texas and southern Arizona. 



The Hopi Indians are said to use a decoction of the leaves and flowers 

 to relieve pain in the chest. 



4. Chrysopsis fulcrata Greene, Torrey Bot. Club Bui. 25: 119. 1898. 



Chrysopsis resinolens A. Xels., Torrey Bot. Club Bui. 28: 232. 



1901. 



Coconino, Yavapai, Graham, and Pima Counties, 5,000 to 8,000 

 feet, usually among rocks, June to October. Montana to Texas, Xew 

 Mexico, and Arizona. 



5. Chrysopsis hispida (Hook.) DC, Prodr. 7: 279. 1838. 



Diplopappus hispidus Hook., Fl. Bor. Amer. 2: 22. 1S34. 



Navajo and Coconino Counties to Cochise and Pima Counties. 

 2.000 to 7,000 feet, dry rocky slopes, April to October. Saskatchewan 

 to British Columbia, south to southern Arizona and California. 



6. Chrysopsis viscida (A. Gray) Greene, Ervthea 2:105. 1S94. 



C7trysopsis villosa var. viscida A. Gray, Syn. Fl. I 2 : 123. 1SS4. 



Xear Holbrook (Navajo County). Chiricahua Mountains (Cochise 

 County), Santa Rita Mountains (Pima County), 5.000 to 8,500 feet. 



