Rydberg: Rocky Mountain flora 145 



This species is intermediate between A. oreganus Nutt. and A. 

 proximas Greene. It has often been mistaken for the former, as 

 it has the same narrow leaves and general habit, but differs in the 

 involucre, which is essentially that of A. proximus, consisting of 

 foliaceous oblanceolate outer bracts and shorter merely green- 

 tipped inner ones ; but the bracts are less squamose and the leaves 

 much narrower, darker in color, and firmer. 



Wyoming: Mammoth Hot Springs, Oct. ii, 1902, Mearns 

 4806 (type, in herb. N. Y. Bot. Gard.) ; same locality and col- 

 lector, Aug. 2, 2731 (?); Aug. 17, 33 go; Gardiner River, Sept. 11, 

 1902, Mearns 3 g 13 ; Mt. Leidy, Aug., 1897, Txveedy 361. 



Montana : Bozeman, Aug. 24, 1892, Kelsey ; near Rost 

 Lake, Aug., 1901, MacDongal 887a; Belt River, Oct., 1883, F. 

 W. Anderson 3803V. 



Saskatchewan: Cypress Hills, Aug. 5, 1880, /. Maconn 7038. 



Alberta : Crows Nest Pass, July 31, 1897, /. Maconn 23076 ; 

 overflow from Middle Spring, Banff, July 16, 1899, Sanson 2241 ; 

 Banff, Sept. 24, 1904,/. Maconn 63486. 



Aster phyllodes sp. nov. 



Aster foliacens Britt. & Brown, 111. Fl. 3: 371 (excluding figure). 



1898. Not A. foliacens Lindl. 1835. 



The plant described in Britton & Brown's Illustrated Flora is 

 not Aster foliacens Lindl. of the Northwest, which is a simple 

 plant, with 1-3 large heads and narrowly linear-lanceolate leaves. 

 The figure in the Illustrated Flora was not drawn from my 

 Kimball County plant as stated there. It probably does not rep- 

 resent an Aster at all. Evidently some illustrations have been 

 interchanged. The Nebraska plant is nearer to A. puniceus in habit 

 than to A. foliacens, although the pubescence and bracts approach 

 the latter. It is more closely related to A. proximus Greene, but 

 differs in the more or less toothed and more distinctly auriculate, 

 darker leaves. 



The only specimens seen are the following : 



Nebraska : Lodge Pole Creek, near Kimball, Kimball County, 

 Aug. 12, 1 89 1, Rydbei-g 163 (type). 



Colorado : West of Livermore, Larimer Co., Aug. 26, 1896, 

 Osterhont 2933. 



