24O UNIVERSITY OF MISSOURI STUDIES [388 



Alpine forest at Ward, 9000-9300 ft. (Daniels, 304). 

 Colorado to Utah. 



1096. A. rosea (D. C. Eaton) Greene. Rosy cat's-foot. 

 Common throughout the foothills and mountains, and de- 

 scending to the mesas and plains along gulches, 5700-9000 ft. 

 (Daniels, 775). Also North Boulder Peak and from Eldora 

 to Baltimore (Rydberg). 



Alberta to Yukon ; Colorado to California. 



1097. A. imbricata E. Nels. Imbricate cat's-foot. 



At timberline, Arapahoe Peak, 10500-11000 ft. (Daniels, 



934)- 



Montana to Colorado and Utah. 



1098. A. corymbosa A. Xels. [A. nardina Greene]. Corym- 

 bed cat's-foot. 



Alpine forest at Ward, 9000-9300 ft. (Daniels, 305). 

 Montana and Oregon to Colorado. 



1099. A. parvifolia Nutt. [A. formosa Greene; A. microphylla 

 Rydb.]. Small-leaved cat's-foot. 



Common on barren knolls throughout, 5100-10000 ft. (Dan- 

 iels, 702). 



Saskatchewan to British Columbia ; Nebraska to New 

 Mexico. 



1 100. A. oxyphylla Greene. Sharp-leaved cat's-foot. 

 Common on the mesas, foothills, and mountains, 5700-10000 



ft. (Daniels, 115). 

 South Dakota to Montana ; Nebraska to Colorado. 



iioi. A. apnea Greene. Sunny cat's-foot. 



Mountains at Ward, a dwarf form, 4 cm. high, 9000-9300 ft. 

 (Daniels, 1028). Also Eldora to Baltimore (Rydberg). Piper, 

 however, Cont. U. S. Nat. Herb. 11, 605, makes this species 

 identical with A. parvifolia Nutt. 



South Dakota to Alberta; New Mexico to Utah. 

 1 102. A. marginata Greene. Marginate cat's-foot. 



Foothills along Boulder Canon, 6500-8000 ft. (Daniels, 

 1029). The plants have leaves glabrous and bright green 



