240 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. imbricate, E. Nels. IMBRICATE CAT'S-FOOT. 



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



934). 



MONTANA to COLORADO and UTAH. 



1098. A, corymbosa A. Nels. [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. 



noo. 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. 



noi. A. aprica 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 



