428 MEMOIRS OF THE XEW YORK BOTANICAL GARDEN. 



Artemisia pedatifida Nutt. Trans. Am. Phil. Soc. (II.) 7 : 399 [Syn. 

 Fl. I- : 368 : Man. R. M. 200] . 

 Rare, on dry hills, at altitudes of 2500-3000 m. 

 Yellowstone Park: 1873, C. C. Parry, 180. 



Artemisia dracunculoides Pursh, Fl. Am. Sept. 742 [Syn. Fl. i- : 



369; Man. R. M. 200; 111. Fl. 3: 463]. 



In the plain regions, up to an altitude of over 2000 m. 



Montana: Fridley, 1887, Tiveedy, 314; Rainbow Falls, 1885, 

 R. S. Williams, 23 j ; Smith River, 1883, Scrihncr, 114; Billings, 

 1898, Williams & Griffith. 



Yellowstone Park : Indian Creek, 1884, Tzvccdy, 187. 



Artemisia scopulorum Gray, Proc. Acad. Sci. Phila. 1863 : 66 [Syn. 



Fl. I-: 369; Man. R. M. 200]. 



A truly alpine plant, growing among rocks, at an altitude of about 

 3000 m. 



Montana: Park Co., 1887, Tweedy, jij; Electric Peak, Aug. 

 18, 1897, Rydhcrg & Bessey, 5212; Lake Plateau, 1897, P. Koch, 

 J 2 and S4. 



Yellowstone Park : 1873, C. C. Parry, i8j ; 1884, Tzveedy, 

 igo. 



Artemisia frigida Willd. Sp. PI. 3: 1838 [Syn. Fl. i' : 369; Man. 



R. M. 201 ; 111. FI.3: 464]. 



Belongs really to the plains region, growing on dry hills, but ex- 

 tends into the mountains, up to an altitude of 2000 m. 



Montana: Bear Creek, 1887, Tzveedy, jij : Bozeman, 1897, //". 

 S. Jennings; Rainbow Falls, 1885, R. S. Williams, 24.6; Emigrant 

 Gulch, Aug. 23, 1897, Rydherg & Bessey ; Prickl}^ Pear Valley, 

 1883, Scrihner, ijj. 



Yellowstone Park: 1884, Tzveedy, 188; Mammoth Hot 

 Springs, 1885, 6gj. 



Artemisia biennis Willd. Phytogr. 11 [Syn. Fl. i- : 370; ]\Ian. 



R. M. 201; 111. Fl. 3: 465]. 



On river banks, open grounds, waste places, etc., up to an altitude 

 of 1500 m. 



Montana: Park Co., 1887, Tzveedy, joy; Great Falls, 1886, 

 R. S. Williams, jjj ; Helena, 1892, R. D. Kelsey ; Musselshell 

 River, 1896, Flodman, 888. 



