4i8 



BOTANICAL GAZETTE 



[NOVEMBER 



Mountains, E. Oregon, distributed as P. kumilis, but which it is not. Cusick's 

 specimen is larger in every way and less leafy on the stems. 



Artemisia 



Growing in small 



nearly simple virgate stems each from a lor 

 stems rather slender, pale-green, slightly 



minu 



pu- 



berulent 



cm 



thinly tomentose below, the margins revolute, sim 



■4) divaricate lobes and the body 



Ions: heads 1 



cm 



pinnatifid, the few (2- 

 nearly so: panicle narrow, dense, 7 

 subspherical, 2-3 mm. high: involucral bra 

 greenish center, nearly glabrous, the deli 

 appearing as if obscurely fringed: bracts 



:arious margins 

 1 or 2 to each 



3-6 



more or fewer ) , the mar 



ginal ones pistillate, the 



achenes glabrous. 



■ 



In floral characters this is near A. discolor Dougl., but the aspect is that of 

 A. aromatica A. Nels. or A. redolens Gray. In A. potens the heads form a long 

 compact panicle and are as nearly erect as their crowded condition will permit. 

 A. discolor has a woody caudex; A. potens is herbaceous to the ground. A. 

 discolor grows in the moist rich soil of the mountains; A. potens on the dry 

 saline-gravelly clays of the plains. The name refers to the overpowering but 

 wholly characteristic Artemisia odor. 



Type from Mackay, Jul 



University of Wyoming 

 Laramie, Wyoming 



1. no. 1 



Macbmde 



