SUPPLEMENT TO THE FLORA OF MONTANA. 101 



Aster hesperius, Gray. (G. H. Shull). 

 Kalispell, Sept. 8, 1899; Leonia, Sept. 14, 1900. 



Aster Nelsonii, Greene, Pittonia, 4:219. (G. H. Shull). Boze- 

 man, Aug. 26, 1898; Steele /Teton Co., Aug. 20, 1901. 



Aster ptarmicoides, Torr. & Gray. Wibaux, Aug. 15, 1903. 

 Rare. 



Aster Sibericus, L. Common along the gravel margins of the 

 Flathead River, July 27, 1900, and of the Koutenai above Leonia, 

 Sept. 14, 1900; also Tenderfoot Cr., Teton Co., July 31, 1891, R. S. 

 Williams. 



Balsamorrhiza floccosa, Rydberg, Bull. Torr. Bot. Club, 27:629. 

 Separated from B. Hookeri, Nutt. "Spanish Basin, 1897, Rydberg & 

 Bessey, 5175." 



Bidens frondosa, L. Eastern plains, rare. 



Sand Coulee, 1886, R. S. Wiliams; Box Elder Cr., Valley Co., 

 July 14, 1900; Crow Agency, July 15, 1901. 



*Centaurea Cyanus, L. The corn-flower is a frequent escape 

 from ornamental cultivation. Bozeman, 1902; Missoula, 1903. 



Chrysopsis villosa discoidea, Gray. "Canyons of W. Montana 3 

 Watson." Syn. Flora, i :i23. 



*Cichorium Intybus, L. The chickory is introduced in a few 

 localities and promises to be permanent. Holt, July 23, 1900. 



*Cnicus lanceolatus, Willd. The Scotch thistle is frequent 

 along railroads and in many localities in the western part of 

 the state. Kalispell, July 21, 1900; White Pine, Sept. 9, 1904, and 

 other localities. 



Erigeron Nelsonii, Greene, Pittonia, 3:294. (G. H. Shull). 

 Bozeman, July i, 1898. 



*Galinsoga parviflora, Cav. Occasional as a weed about green- 

 houses. Bozeman, Apr. 19, 1901. 



Helianthus Maximiliani, Schrad. Frequent in low ground 

 along the Missouri River from Malta eastward. 



Missouri River, near Calais, July 14, 1900; Malta, Sept. 9, 1900; 

 Upper Little Big Horn River, July 13, 1890. 



Lactuca Canadensis, L. Big Fork, Aug. 8, 1904, Millie M. 

 Smith. 



