Rydberg : Studies on the Rocky Mountain Flora 605 



This is a member of the A. vuiltiflonis group and has been 

 confused with A. coi/iiniitcitiis [T. & G.) Gray or A. incano-pilosus 

 Sheldon. In A. coininutatiis, the stem is strigose-pubescent, the 

 branchlets more elongated and the outer bracts longer than in x\- 

 crassitliis and often equalling or surpassing the inner bracts. It 

 may be the same as described by Lindley in Hooker's Flora and 

 DeCandoUe's Prodromus as "' A. ramulosus ;?, incano-pilosus"; 

 but here it is to be noticed that the word "incano-pilosus" is 

 printed in the same type as all the descriptions and not the special 

 type used for names. Hence "incano-pilosus" was a descriptive 

 term for the A. raiiuilosiis ,5, and not the name. If, however, 

 it should be taken as a name, which Mr. Sheldon did, it is a 

 nouicii Jindmn, as no further description is given, and then should 

 be disregarded. As Sheldon's Aster incano-pilosus, which is amply 

 distinct, has as a synonym, the older A. commutatiis (T. & G.) 

 Gray it must be dropped and A. couinuitatus substituted. 



A. crassu/ns grows on dry plains and table-land at an altitude 

 of 1 200 m. 



Colorado : Mesas, La Veta, 1900, F. K. J^rccland, 6goa (type) 

 and 6go \ Denver, 187 1, Dr. Geo. Smith, Sj ; Ridgway, 1894, F. 

 Tweedy, J 06 ; Pagosa Spring, 1899, C. F. Baker, dj'/. 



New Mexico : 185 i, C Wright, iijj; Rio Dolores, Netvberry. 



California: Valley, near San Filipe, 1858, S.Hayes. 



Wyoming: Bear Lodge Mountains, 1898, L. ]V. Carter; 

 Moorcroft, 1897, Z. W. Carter; Dayton, 1899, F. Tiveedy, 20JI. 



North Dakota: Minot, 1891, Wright; Custer, i2,g2, Ryd- 



f-^'-'i'g, 773- 



Montana: Park Co., 1887, F. Tzveedy, j^g ; Colgate, Sa//d- 



berg, MacDongal ^ Heller, 1021 ; Montana Valley, Madison Co., 



1899, Aven & Elias Nelson, 68 jg. 



Aster exiguus (Fernald) 



Aster ciliatus Muhl. ; Willd. Sp. PI. 3: 2027. 1804. Not 

 Walt. 1788. 



Aster licbecladns A. Gray, Syn. Fl. 2' : 185, under A. ninltiflorus. 

 Not DC. 



Aster ninltiflorus var. exiguus Fernald, Rhodora. i : 187. 1899. 



I think that Aster ciliatus Muhl. is distinct from A. ninltiflorus ; 



