Rydberg: Studies on the Rocky Mountain flora 313 



staminate plant has a few pistillate flowers borne on the lower 

 part of the branches. The predominantly pistillate plant has 

 often a few staminate clusters above but is sometimes wholly 

 pistillate. E. subspinosa grows on rocky hills in the desert 

 regions. 



Utah: Rocky summits, St. George, May 15, 1903, Goodding 

 810 (type, in herb. N. Y. Bot. Garden); 1874, C. C. Parry 725; 

 1875, E. Palmer; April 9, 1880, M. E. Jones 1642; Virgin River, 

 1844, Fremont 440. 



Arizona: Fort Verde, October 11, 1887, E. A. Mearns 188; 

 Holbrook, August 10, 1897, Myrtle Zuck; Total Wreck Mine, 1903, 

 Thornher 60; Rincon Mountains, Octolier 7, 1900, D. Griffiths 

 178 1. 



Nevada: Thousand Spring Valley, September 1868, S. Watson 

 ggo (in part); Muddy Valley, Lincoln County, May 6, 1906, 

 Kennedy of Goodding. 



California: Mohave Desert, April 1905, Mrs. C. DeKalh; 

 Radsburg, April \^, A. A. Heller 7705; Red Hill, west of Bishop, 

 May i^, A. A. Heller 8253. 



Sonora: Genaga di San Bernardino, 1855, Schott. 



Dondia calceoliformis (Hook.) Rydb. comb. nov. 



Chenopodiiim calceoliformis Hook. Fl. Bor.-Am. 2: 126. 1838. 



This, I think, deserves specific rank. It is characterized from 

 D. depressa (Pursh) Britton and D. erccta (S. Wats.) A. Nels. by 

 its broad and short, ovate or ovate-lanceolate bracts oxer 2 mm. 

 wide. 



AMARANTHACEAE 

 Amaranthus pubescens (Uline & Bray) Rydb. comb. nov. 



Amaranthus graecizans pubescens Uline & Bray, Bot. Gaz. 19: 317. 



1894. 



This probably deserves specific rank. It has been collected 

 in Colorado. 



Amaranthus carneus Greene and A. calif ornicus S. Wats, 

 should be added to the region. The former has been collected in 

 Montana, and both in Idaho. 



