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



8. Dalea thompsonae (Vail) L. O. Williams, Mo. Bot. Gard. Ann. 23: 



451. 1936. 



Parosela thompsonae Vail, Torrey Bot. Club Bui. 24: 18. 1897. 



Known only from the type, which was collected in northern Arizona, 

 probably near Kanab, Utah (Mrs. Thompson in 1872). 



9. Dalea whitingi Kearney and Peebles, Wash. Acad. Sci. Jour. 29: 



484. 1939. 

 Known only from the type locality, Wupatki National Monument, 

 Coconino County (Whiting and Jones in 1938, the type collection, 

 D. J. Jones in 1939), and from southeastern Utah. 



10. Dalea calycosa A. Gray, PL Wright. 2: 40. 1853. 



Parosela calycosa Heller, Cat. North Amer. PL ed. 2, 5. 1900. 



Pinal, Cochise, Santa Cruz, and Pima Counties, about 4,000 feet, 

 April to September. New Mexico, southern Arizona, and northern 

 Mexico. 



11. Dalea diffusa Moric, Soc. Phys. Hist. Nat. Geneve Mem. 6: 536. 



1833. 



Parosela diffusa Rose, Contrib. U. S. Natl. Herbarium 8: 305. 

 1905. 



Patagonia Mountains, Santa Cruz County, 4,500 feet (Kearney and 

 Peebles 10054). Southeastern Arizona, Mexico, and Guatemala. 

 The Mexican name is escoba-colorada. 



12. Dalea parryi Torr. and Gray in A. Gray, Amer. Acad. Arts and 



Sci. Proc. 7: 397. 1868. 



Parosela parryi Heller, Cat. North Amer. PL, ed. 2, 6. 1900. 

 Dalea angulata M. E. Jones, Contrib. West. Bot. 16: 25. 1930. 



Mohave, Yavapai, Gila, and Cochise Counties, south and west to 

 Yuma County, March to June (October), type from Fort Mohave. 

 Arizona, southern California, Sonora, and Baja California. 



A xerophytic perennial 1 to 2.5 feet high, with more or less woody 

 stems, common on low deserts but also ranging up to an altitude of 

 4,000 feet. 



13. Dalea lachnostachys A. Gray, PL Wright. 1: 46. 1852. 



Parosela lachnostachys Heller, Cat. North Amer. PL ed. 2, 6. 

 1900. 



Cochise, Santa Cruz, and Pima Counties, 3,500 to 5,000 feet, 

 September. Western Texas, southern New Mexico, Arizona, and 

 Chihuahua. 



14. Dalea mollis Benth., PL Hartw. 306. 1848. 



Parosela mollis Heller, Cat. North Amer. PL, ed. 2, 6. 1900. 



Desert regions of western and southern Arizona, up to 4,000 feet, 

 December to May. Arizona, southern California, Sonora, and Baja 

 California. 



In the typical form the calyx is from 3 to 5 mm. long and is usually 

 surpassed by the corolla. The wing petals are commonly retuse and 

 bear a gland in the apical notch. A form that is more frequent in 

 Arizona has the calyx 5 to 8 mm. long, usually surpassing the 



