VEGETATION OF THE NORTHERN SHORES. 



169 



Lake Superior. 



Europe. 



RVBIACEM. 



Galium trifidum L. 

 " triflorum Mx. 



Galium rotundifolium L. "1 Character" 



A 1 J i 1 I istic of the 



Asperula odorata and Y u i • 



A ! subaipme 



" taurina L. J fjora. 



COMPOSITE. 



Eupatorium purpureum L. 



Aster corymbosus L. 

 macrophyllus L. 

 puniceus L. 

 laxifolius Nees. 

 ptarmicoides Torr. et Gray. 

 graminifolius Pursh. 



Eupatorium cannabinum L. Common 

 in wheat places. 



Aster alpinus L. Creux du Vent. 



Solidago virgaurea L. Yar. alpestris, 

 which grows at Chasseron, and 

 in the lower Alps. 



Of these six American species, the last is exclusively northern, and occurs 

 as far as Labrador, to the pine region. It has its analogue in the fine Aster 

 alpinus of the Creux du Vent, and of the lower Alps. The other species, 

 more widely distributed, are represented in Europe by the Aster Amellus and 

 A. salignus, L., which are plants of the plains. 



Erigeron philadelphicum L. Erigeron alpinum L. Creux du Vent. 



" strigosum Miihl. 

 Diplopappus umbellatus Torr. §• Gr. 

 Solidago stricta At. 



" bicolor L. 



" thyrsoidea E. Meyer. 



" arguta Ait. Var. juncea. 



" canadensis L. 



" lanceolata L. 



The genera Aster and Solidago are exceedingly numerous in America, where, 

 on the contrary, the Inula and the Hieracium, which abound in Europe, are 

 very rare. The same is the case with the Senecionidse, the Centaurese, and the 

 Carduaceas, which are as few in America as they are numerous in Europe. 



Achillaea Millefolium L. Achillea Millefolium L. Var. setacea. 



Var. setacea. Declivities of the lower Alps, in 



the Valais. 

 Tanacetum huronense Null. Tanacetum vulgare L. Chaux de 



Fonds. 



