CATALOGUE OF CANADIAN PLANTS. 229 



(1067.) A. linifolius, Litm. 



A specimen of an aster gathered in a marsh with numerous brackish 

 marsh species is placed under this name until better specimens are 

 procured. Shore of Lake Huron, Bruce peninsula, Ont. 1871. 

 (^Macoun.') 



(1068.) A. linariifolius, Linn. 



Diplopappus linariifolius, Hook. Fl. II., 21. Macoun's Cat, No. 896. 

 Aster rigidus, Linn. Pursli. Fl. II., .544. 



Newfoundland. (Cormack.) Nepisiquit Eiver, N.B. Eather rare. 

 {Fowler's Cat.) Three Eivers, Q. {Maclagan.) 



(1069.) A. umbellatus, Mill. 



Diplopappus umbellatus, Hook. El. II., 22. Macoun's Cat., No. 895. 

 D. amygdalivus, Hook. Fl. II., 23. 



Common in damp thickets or wet meadows along streams, from New- 

 foundland, Anticosti, Nova Scotia and New Brunswick westward to 

 the Saskatchewan. 



Var. pubens, Gray. 



This form is common in the valleys of the Magpie and Kaministi- 

 quia rivers, Lake Superior and westward to the Saskatchewan. 

 (Macmm.) 



Note. 



Collectors are earnestly requested to obtain all forms of asters at the 

 proper season and, in all cases, to take the root-leaves, so that in the 

 course of a few years we may be enabled to revise what we have just 

 written, and be able to place before students a complete monograph of 

 Canadian asters. We are well aware of the imperfections of the above 

 enumerations, but with the material at hand it is the best we can do. 

 Dr. Gray is now revising the genus and a large part of the changes 

 made in the synonymy are due to his advice and writings. The willow- 

 leaved asters are in great confusion and it is more than probable that 

 they will all be reduced to a few polymorphous species including many 

 of our present sjDecies as varieties. 



276. ERICERON, Linn. 



(1070.) E. hyssopifolius, Michx. Fl. IL, 123. 



Aster graminifolius, Pursh. Torr. & Gray Fl. II., 156. Macoun's Cat, 



No. 842. 

 Qalatella graminifolia, Hook. Fl. II., 15. 



Damp, rocky, river banks and moist crevices of cliffs. Mouth of 



