134 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 13 



more or less alkaline soil at west end of pass. 



A decumbent suffrutescent with canescent, purplish, and glandular- 

 pustulate stems. Known hitherto only from the Cape District; the type 

 from Todos Santos. 



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

 San Juanico Bay, Baja California, March 2, Rempel 45. 

 A prostrate or decumbent or somewhate ascending herb in sandy and 

 coarse gravelly soils nearly throughout the Sonoran Desert. 



Dalea Parryi (Gray) Torr. & Gray, in Gray, Proc. Am. Acad. 

 Sci. 7:397. 1868. 



Tortuga Island, March 17, Rempel 227. Los Angeles Bay, March 

 19, 20, Rempel 240. Island in Concepcion Bay, March 16, Rempel 200, 

 on alluvial fan. 



Low, erect, slender, suffrutescent herb with divergent branches widely 

 scattered in sandy and gravelly soils, slopes and washes throughout the 

 California Gulf Region; type from Fort Mojave, California. 



Dalea variegata (Rydb.) Gentry new comb. 



Parosela variegata Rydb., N. Am. Fl. 24:55. 1919. 



Cabeza Ballena, Cape District, March 3, Rempel 71. 



A low slender subshrub described originally from San Jose del Cabo. 

 It appears to be a postinsular endemic and to have migrated little north 

 of its original confines. It is closely related to D. divaricata, which ranges 

 northward along the gulf side of the peninsula. 



Olneya tesota Gray, Mem. Am. Acad. Sci. II, 5:328. 1855. 



Los Angeles Bay, March 19, 20, Rempel 247. West cove in Con- 

 cepcion Bay, March 15, Rempel 182, rocky hillside of east exposure. 



Widely but intermittently distributed throughout the Sonoran Desert 

 in washes and on alluvial fans up to 2500 feet elevation ; type from the 

 tablelands along the lower part of the Gila River, Arizona. A densely 

 branched tree, armed or thornless, with rather persistent leaves, and 

 characteristic of the open washes of the deserts. The Rempel collections 

 are sterile. The tree normally flowers from latter April to June. 



Phaseolus atropurpureus DC, Prodr. 2:395. 1825. 



San Jose del Cabo, February 17, Dawson 1214. 



Widely distributed in North America from Arizona and Texas to 

 Central America. This lacks the sericeus pubescence of typical material 

 from the Cape District, which Gray described as variety sericeus. 



