236 



Fruiting specimens only; collected in McEltno Valley, 5,500 feet 

 altitude. 



Astragalus . 



An interesting species, collected in fruiting specimens only, grows 

 about Navajo Springs, near Cariso Mountains, Arizona. Another un- 

 certain species, growing upon the alkaline flats of the La Plata, was 

 almost out of fruit in June. 



OxYTROPis PODOCARPA, Gray. 



Sierra Sangre de Cristo, 12,000 feet altitude, and alpine summits of 

 the mountains near Breckenridge. 



Prunus demissa, Walp. 

 Common upon both eastern and western slopes at 8,000 feet elevation. 



COAVANIA MEXICANA, Dou. 



Mesa Verde and its caiions ; El Late, 6,000 feet. 



COLEOGYNE RAMOSISSBIA, Nutt. 



Near Hovenweep Castle, 5,250 feet altitude. 



PERAPHYLLUM RAX0SISSIMU3r, Nutt. 



Valleys of the Animas, La 'Plata, and Mancos, 6,000 to 8,000 feet 

 altitude. 



Crat^gus cocci:s^ea, L. 



Greenhorn Eange of the Arkansas Valley and along the banks of all 

 the streams and rivers of Southwestern Colorado. 



Crat^gus rivularis, Nutt (?). 



Texas Creek, near the Sangre de Cristo, 8,000 feet. 

 Potentilla crinita. Gray, PI. Fend., 41. 



Thompson's Park, 7,500 feet. 

 Heuchera rubescens, Torr. 



El Late, 9,000 feet. 

 Fendlera rupicola, Eng. & Gray, PI. Wright, 77. 



Valleys of the Animas, La Plata, and Mancos, Mesa Verde and Cariso 

 Mountains. 



TiLLAEA D^RUMMONDII, T. & G. 



Eio Grande Valley. 

 Callitriche yerna, L. 



Eio Grande Valley. 

 CEnothera brevipes. Gray, xm. parvijlora, Watson. 



Sand-bar of the Eio Mancos, 5,000 feet. 

 CEnothera scapoidea, Nutt. 



Alkaline flats, Caiion City Park, 5.500 feet. 

 Mentzelia ornata, T. & G. 



Common throughout the Arkansas Valley, from 4,000 to 6,000 feet 

 altitude. The flowers are more than 6 inches in diameter, opening at 

 twilight, about two hours later than those of If. mida. When opening, they 

 fill the surrounding air for some distance with fragrance. M. multiflora 



