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



21. Dalea polygonoides A. Gray, PL Wright. 2: 39. 1853. 



Parosela polygonoides Heller, Cat. North Amer. PI. ed. 2, 6. 

 1900. 



Near Flagstaff (Pearson 303). New Mexico, Arizona, an^d Chi- 

 huahua. 



Typically the calyx tube is villous. In var. laevituba Kearney and 

 Peebles (D. hutchinsoniae var. anomala M. E. Jones) the calyx tube 

 is glabrous. The variety is not uncommon in the mountains of 

 southeastern Arizona, 6,500 to 9 ; 000 feet, and is found also in New 

 Mexico. 



22. Dalea terminalis M. E. Jones, Contrib. West. Bot. 12: 8. 1908. 



Parosela terminalis Heller, Muhlenbergia 6: 96. 1910. 



Navajo, Coconino, Mohave, and Graham Coimties, 2,000 to 5,000 

 feet, sandy soil, May to September. Southern Utah, Arizona, Texas, 

 and Chihuahua. 



The essentially glabrous calyx tube distinguishes this species from 

 the more eastern Dalea lanata Spreng. 



23. Dalea jamesii (Torr.) Torr. and Gray, Fl. North Amer. 1: 308. 



1838. 



Psoralen jamesii Torr., Ann. Lye. N. Y. 2: 175. 1827. 

 Parosela jamesii Vail, Torrey Bot. Club Bui. 24: 16. 1897. 



Pima, Santa Cruz, and doubtless Cochise Counties, 5,000 feet, 

 grassland, infrequent. Kansas and Colorado to southern Arizona 

 and northern Mexico. 



24. Dalea aurea Nutt. ex Pursh, FL Amer. Sept. 740. 1814. 



Parosela aurea Britton, Torrey Bot. Club Mem. 5: 196. 1894. 



Navajo County, at Fort Apache (Palmer 611) and Cibecue Creek 

 (Thornber in 1905), June. South Dakota and Wyoming to Texas, 

 Coahuila, and Arizona. 



25. Dalea wrightii A. Gray, PL Wright. 1: 49. 1852. 



Parosela wrightii Vail, Torrey Bot. Club Bui. 24: 16. 1897. 



Navajo, Cochise, and Pima Counties, 3,500 to 5,000 feet, grassland, 

 May to October. Western Texas to Arizona and Alexico. 



26. Dalea nana Torr. in A. Gray, Amer. Acad. Arts and Sci. Mem. 



ser. 2, 4: 31. 1849. 



Parosela nana Heller, Bot. Expl. Texas 49. 1895. 



Beaver Head, Yavapai (?) County (Busby in 1883), and in Cochise 

 County, grassland, May and June. Kansas to Texas, Arizona, and 

 Mexico. 



In the typical form the leaflets are sericeous on both faces and 

 commonly obtuse. A more common form in Arizona is var. car- 

 nescens (Rydb.) Kearney and Peebles (Parosela carnescens Rydb.) 

 with leaflets obtuse to acutish, green and glabrate above, and stems 

 usually stouter. 



