388 MEMOIRS OF THE NEW YORK BOTANICAL GARDEN. 



Solidago procera Ait. Hort. Kew. 3: 211 ; Solidago Canadensis pro- 



ccral^oxx. & Gray, Fl. N. Am. 2: 224 [111. Fl. 3: 344: Syn. 



Fl. I-: 157; Man. R. M. 154]. 



In river-valleys, up to an altitude of 1500 m. 



Montana: Little Rocky Mts., 1889, Br. V. Havard; Teton 

 River, 1883, So'ibncr, 84. 



Solidago elongata Nutt. Trans. Am. Phil. Soc. (II.) 7: 327 [Syn. Fl. 



I-: 157; Bot. Cal. i: 319; Man. R. M. 154]. 



In valleys, at an altitude of 1500-2000 m. 



Montana: Cliff Lake, July 27, 1897, Rydherg & Bessey, jojd ; 

 Forks of the Madison, jOjy; Smith River, 1883, Scribner, Sj. 



Yellowstone Park: Lone Star Geyser Basin, Aug. 7, 1897, 

 Rydberg & Bessey, jOjj ; Mammoth Hot Springs, 1884, Tzveedy^ 

 113; 1885, 679 ' 

 Solidago pulcherrima A. Nelson, Bull. Torr. Bot. Club, 25: 549; 



Solidago diffusa A. Nelson, Bull. Torr. Bot. Club, 25 : 378 ; not 



A. Gray; Solidago nemoralis Gray, Syn. Fl, i" : 158, in part, as 



to the western plant [Man. R. M. 155] ; not Ait. 



Differs from the eastern S. Jiemoralis in the smaller leaves and 

 heads, the shorter panicles and the finer pubescence. It grows on 

 plains and dry prairies, up to an altitude of 2000 m. 



Montana: Teton River, 1883, Scribner, 82. 



Yellowstone Park : Mammoth Hot Springs, 1884, Tweedy, 



Solidago nana Nutt. Trans. Am. Phil. Soc. (II.) 7: 327 [Syn. Fl. 



i==: 158; Man. R. M. 155]. 



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



Montana: Bridger Creek, 1887, Tweedy, 326; F. IV. Ander- 

 son. 



Yellowstone Park: Lone Star Geyser Basin, Aug. 7, 1897, 

 Rydberg & Bessey, 5034.. 



Solidago mollis Baitl. Ind. Sem. Goett. 5 [111. Fl. 3: 344]; So- 

 lidago incana Torr. & Gray, Fl. N. Am. 2: 221; S. nemoralis 

 /«crt«« Gray, Proc. Am. Acad. 17: 197 [Syn. Fl. i' : 158; Man. 



R. M. 155]- 



Dry plains, up to an altitude of 1500 m. 



Montana: Little Rocky Mts., 1889, V. Havard; Dog Creek, 

 1887, R. S. Williams, 260; Smith River, 1883, Scribner, 78. 



