VEGETATION" OF THE NORTHERN SHORES. 



157 



Lake Superior. 



Europe. 



ROSACEA. 



Comaruin palustre L. Very abund't 



Fragaria vesca L. 

 Rubus triflorus Rich. 



" strigosus il/x. Everywhere. 



" canadensis L. 

 Rosa stricta Lindl. 

 " blanda Ait. 



Sorbus americana DC. 



Amelanehier canadensis Torr. Sf Gr. 



Comarum palustre L. Abounds in 

 the peat bogs of the higher Jura- 

 Fragaria vesca L. Middle Jura. 

 Rubus saxatilis L. Higher Jura. 



" IdjEus L. Everywhere in the 

 Jura. 

 Rosa alpina L. ^ Pastures 



" rubrifolia DC. C of the 

 " tomentosa L. ) liiglier Jura. 

 Sorbus Aucuparia L. The higher 



limit of the trees in the Jura. 

 Amelanehier vulgaris DC. Middle 

 Jura. 



The Malvacete are generally plants of warm countries. This family is not 

 represented about Lake Superior by a single species, nor are the intermediate 

 families between this and the Leguminosse. The Leguminosse themselves are 

 very rare, since they are, like the Caryophyllacea?, plants of the higher Alps, or 

 of the plain. The Rosacese, on the contrary, generally extensive in the sub- 

 alpine regions of Europe, are also abundant around Lake Superior. 



ONAGRARI^. 



Circffia alpina L. 

 Epiloblum angustifolium L. 



" coloratura Muld. 



" palustre L. 



Ribes prostratum L. §• Ait. 

 " hirtellum Mx. ' 

 " lacustre Pers. 

 " oxyacanthoides H. 



Saxifraga Aizoon Jacq. 

 " tricuspidata Retz. 



Circ?ea alpina L. Woods of the high- 

 er Jura. • 

 Epilobium angustifolium L. Forest. 



" tetragonum L. Moist places. 



" palustre L. Peat bogs. 



RIBESIEJS. 



Ribes petr£Eum Jacq. Higher Jura. 

 " alpinum L. " " 



" Uva-crispa. " " 



" Grossularia L. In rocky places. 



SAXIFRA GEM. 



virginiensis Mx. 



Saxifraga Aizoon Jacq. Higher Jura 

 " aizoides L. Alps, and lower 

 Alps. 



