MEMOIRS OF THE NEW YORK BOTAXICAE GARDEN. 395 



what that of A. incanopilosiis. It grows on dry bench-lands and 

 rocky hillsides, at an altitude of 1500-2000 m. 



Montana: Helena, 1890, i^(f/5(?y (type) ; Fridley, 1887, Tiveedy, 

 JJ2; Bird Tail Creek, 1883, Scribner, 8g; Eunis, 1886, Tirecdy, 

 1141, in part. 



Aster adscendens Lindl. ; Hook, Fl. Bor. Am. 2 : 8 [111. Fl. 3 : 370 : 



Syn. Fl. I-: 191 : Bot. Cal. i: 324: Man. R. M. 162]. 



Very variable as now understood, and the specimens here cited 

 may represent three or four species. In drv soil, up to an altitude 

 of 1000-2000 m. 



Montana: Sand Coulee, 1891, R. S. Williams, 22g; Snowy 

 Mts., 1882, Canby. 



Yellowstone Park : Yellowstone Lake, 1885, Tzceedy, j^o and 

 741 ; Lower Geyser Basin, Aug. 4, 1897, Rydberg & Bessey, 2120 ; 

 Mammoth Hot Springs, 1885, Tzuecdy, 740: 1884, 144. 



Aster andinus Nutt. Trans. Am. Phil. Soc. (II.) 7: 290 [Syn. Fl. 



I-: 191 ; Man. R. M. 162]. 



On the higher mountains, up to an altitude of nearly 3000 m. 



Yellowstone Park: 1873, ^- ^- R<^f'f'yi ^2j ; Electric Peak, 

 Aug. 18, 1897, Rydberg- & Bessey, 311Q; Hoodoo Peak, 1897, 

 P. Koch, ij. 



* Aster subspathulatus ; Aster spathiilatus Lindl.; DC. Prod. 5: 



231, 1836 [Syn. Fl. s} : 191] ; not Lag., 1832. 



Resembles somewhat A. Fremontii, but has larger heads, and 

 few very long thin oblanceolate or spatulate leaves. Grows in wet 

 shady places among bushes, at an altitude of about 2500 m. 



Montana: Jack Creek, July 15, 1897, Rydberg ct- Bessey, 



5117- 



Yellowstone Park: Upper Falls, Aug. 14, 1897, Rydberg & 



Bessey, 5//*^. 



Aster Fremontii (Torr. & Gray) Gray, Syn. Fl. i" : 191 [Man. R. M. 

 162] ; Aster adscendens Fremontii Torr. & Gray, Fl. X. Am. 



2:503- 



In shad}^ places, open woods, etc., at an altitude of 2000-2500 m. 



Montana: Bozeman, 1884, Tzveedy, iji ; Spanish Basin, June 

 30, 1897, Rydberg ii- Bessey, 5124; Meadow Creek, 1886, Tzveedy, 

 1 146; Upper Marias Pass, 1883, Canby, lyi ; Flathead River, 171a; 

 East Boulder, 1887, Tzveedy, 354; Missouri River, 1882, Canby; 

 Belt Mts., 1882, Canby. 



