MEMOIRS OF THE NEW YORK BOTANICAL GARDEN. 397 



lonactis stenomeres (Gray) Greene, Pittonia, 3 : 246 ; Aster stcno- 



meres Gray, Proc. Am. Acad. 17: 209 [Syn. Fl. i" : 198; Man. 



R. M. 164]. 



Dry mountain ranges, at an altitude of about 2000 m. 



Montana: Beaver Head Co., 1888, F. Tzvcedy, 14; Silver Bow 

 Co., Mrs. Ida Christie; Rattlesnake Creek, 1888, Tzveedy, 14; 

 Sweetwater Basin, Beaver Head Co., 1888, 2j6 ; Big Hole Valley, 

 1880, Watson. 



lonactis alpina (Nutt.) Greene, Pittonia, 3 : 245 ; Diplopafpis alpinus 

 Nutt. Trans. Am. Phil. Soc. (II.) 7 : 304 ; Aster scopuloriuii Gray, 

 Proc. Am. Acad. 16: 98 [Syn. Fl. i" : 198; Man. R. M. 164]. 

 On very dry hills, at an altitude of 1500-2500 m. 

 Montana: Wycth; Silver Bow Co., 1890, F. D. Kelsey ; Deer 



Lodge, 1888, F. W. Traphagen; Beaver Head Co., 1888, Tweedy, 



2j6; Melrose, 1895, Rydberg, 281^ ; Gardiner, 1885, Tweedy, 744; 



Boulder River, 1883, Scri'bner, gya ; Blackfoot River, 1883, Canbv, 



^75'^ Big Hole Valley, 1880, Watson. 



Yellowstone Park : 1888, Dr. Chas. H. Hall; Mammoth Hot 



Springs, 1885, Tzueedy, 744, in part; Stinking Water, 1871, Hayden 



Survey. 



EucephalusEngelmanni (D. C. Eaton) Greene, Pittonia, 3 : 54; Aster 

 elegans Engelnianni D. C. Eaton, King's Exped. 5: 144; A. 

 Engclmanni Gray, Syn. Fl. i^ : 199 [Man. R. M. 165] . 

 On mountain-sides, at an altitude of 2500-3000 m, 

 Montana: Mill Creek, 1887, Tzueedy, jjS ; Flathead River, 



1883, Canby, lyj. 



Yellowstone Park: 1873, C. C. Parry, 134; 1884, Tzueedy, 



IJ2 ; Electric Peak, Aug. 18, 1897, Rydberg & Bessey, 5114. 



Eucephalus elegans Nutt. Trans. Am. Phil. Soc. (IE)?: 298; Aster 



elegans Torr. & Gray, Fl. N. Am. 2: 159 [Syn. Fl. i" : 200; 



Man. R. M. 165]. 



On mountain-sides and dry ridges, at an altitude of 2000-2500 m. 



Montana: Madison Co., 1886, Tzueedy, 1143. 



Yellowstone Park: 1873, C. C. Parry, 133; 1885, G. W. 

 Lctterman; 1884, Tweedy, 142; Electric Peak, August 18, 1897, 

 Rydberg & Bessey, 3112. 



Idaho : Henry's Lake, July 31, 1897, Rydberg & Bessey, 5113. 



