FLORA OF MICHIGAN. '101 



*-546. A. azureus, Lindl. 



Sterile soil. Flint; Ann Arbor; Ionia Co.; Macomb Co. Infrequent. 



*547. A. undulatus, L. L. P. 



Dry copses. Flint ; 8. Mich.; Cheboygan Co., B. & K.; Ionia Co. Common. 



*548. A. cordifolius, L. Th. 



Woods. Common. 



*549. A. sagittifolius, Willd. Th. 



Dry grounds. Frequent. 



550. A. Liindleyaims, Torr. & Gray. N. & U. P. 



" Labrador to Lake Superior." Gray's Manual ; Mackinaw City, Wheeler; Keweenaw Co., F. Not 

 common. 



*551. A. Itevis, L. L. P. 



Border of oak woods. Cheboygan Co., B. & K. Common southward. 



552. A. ericoides, L. 



Petoskey, Wheeler; shores of the Great Lakes. 



553. A. multifloriiN, Ait. C. & S. 



Sandy soil. Frequent. 



554. A. dumosus, L. L. P. 



Thickets. Macomb Co.; Petoskey, Dr. D. Clark ; Hnbbardston, not common, Wheeler ; Cheboygan 

 Co., Beardslee. 



*555. A. vimineus, Lam. L. P. 



Low grounds. Cheboygan Co., Beardslee. Frequent southward. 



*556. A. diffusus, Ait. Th. 



Fields. Exceedingly variable. Common. 



557. var. tliyrsoideus, Gray. 



Washington, Macomb Co., Dr. D. Cooley; and northward. 



* 558. A. Tradescanti, L. L. P. tv 



Low grounds. Flint; Macomb Co. Frequent. 



*559. A. puniculatus, Lam. Th. 



Shady banks. " Polymorphous," Gray. Frequent. 



560. A. salicifolius, Ait. 

 Hoist soil. Flint; Macomb Co., etc., northwardi Frequent. 



*561. A. juiiceus, Ait. Th. 



Tamarack swamps. Ionia Co.; Flint; Macomb Co., etc., northward. Frequent. 



*562. A. pimiceus, L. Th. 



Low grounds. Common. 



*563 var. lueidulus, Gray. 



Macomb Co. westward. Abundant. 



*564. A. umbellatus, Mill. Th. 



Moist places. 



565 var. pubeiis, Gray. 



Upper Mich., Gray's Manual; Cheboygan Co., Beardslee; Keweenaw Co., F. 



566. A. ptarmicoides, Torr. and Gray. Th. 



8. E. Michigan; Macomb Co.; Clarkston, G. H. Hicks ; Keweenaw Co., F. Infrequent. 



192. ERIGERON, L. FLEABANE. 



*567. E. Caiiadensis, L. Horse-weed. Butter- weed. Th. 



Waste grounds. Common. 



