(355) 
5. ATripLex Parryt S$. Wats. Proc. Am. Acad. 17: 378. 1882. 
Type locality: “Near Colton, California.” Parish (Zoe 5: 113) 
states that “Dr. Parry’s plant was collected at Lancaster, in the 
Mohave Desert.” 
Distribution: Mohave Desert, southern California. Lower 
Sonoran. 
Specimens examined: Lancaster, Elmer 3640; Wells, Dec. 1909. 
6. ATRIPLEX HYMENELYTRA (Torr.) S. Wats. Proc. Am. Acad. 9: 
11g. 1874. 
Obione hymenelyira Torr. Pacif. R. Rep. 4: 129, pl. 20. 1857. 
Type locality: “Hills and gravelly places, on Williams River.” 
Distribution: Southern Utah and Arizona westward to the 
desert slopes of the mountains of southern California. Growing 
in dry gravelly washes. Lower Sonoran. 
Specimens examined: Near Bennett Wells, Death Valley, 
Coville Funston 195; Signal Mountain, Colorado Desert, 
Abrams, Dec. 29, 1907; eastern slope of the Cuiamaca Mountains, 
Emory Nov. 28, 1846; near Mammoth Tank, Parish, Dec. 10, 
1881. 
7. ATRIPLEX CANESCENS (Pursh) Nutt. Gen. N. Am. Pl. 1: 197. 
1818. 
Calligonum canescens Pursh, Fl. Am. Sept. 2: 370. 1814. 
Obione tetraptera Benth. Bot. Sulph. 48. 1844. 
Type locality: “In the planes of the Missouri, near the Big- 
bend.” 
Distribution: Nevada and Colorado southward to New Mexico 
and Arizona, and westward to southern California, where it is 
especially common in the deserts. On the coast slope it occurs 
rather locally in the interior valleys toward the deserts, and in 
the vicinity of San Diego, mostly in dry subsaline places. Upper 
and Lower Sonoran. 
Specimens examined: Ten Sycamore Flat, Sespe Creek, Abrams 
€F McGregor 167; Lancaster, Elmer 3647; between Glendale and 
Burbank, Braunton 906; Cushenberry Spring, Abrams 2150; San 
Bernardino, Parish, May, 1900; near Redlands, G. R. Hall, 1904; 
San Jacinto Valley, Hall 2003; Encinitas, McClatchie, June, 1896; 
La Jolla, Abrams gor2; San Diego, Parry, 1850; Palmer 327; 
Calexico, G. D. Abrams, Sept., 1902. 
