158 LAKE SUPERIOR. 



Lake Superior. Europe. 



SAXIFRA GEjE. 



Mitella nuda L. | These two species have no other analogues in Europe 

 ♦' diphylla L. ) than the Saxifraga rotundifolia, and the species similar 

 to it. In genei'al, the Saxifragesa, which have few rep- 

 resentatives about Lake Superior, belong to the alpine 

 region, so that in order to meet them in the plain, we 

 have to go as far as Greenland, where they are numer- 

 ous. The species of the plains are represented in 

 America by the genera SuUivantia, Heuchera, Mitella, 

 and Tiarella. 



UMBELLIFERJS. 



Sanicula marilandica L. Sanicula europaea L. Creux du Vent. 



ArchangeUca atro-purpurea Hoff. Archangelica officinalis Hoff. Jura, 



also in the Valtellina. 

 Osmorrhiza brevistylis DC. Chasrophyllum hirsutum L. Jura. 



Sium lineare Michx. Slum latlfolium L. 



ARALIACEjE. 



Aralia hispida Michx. This family has but one representative 



in Central Europe, Hedera 

 Helix L. 



CORNAOEM. 



Cornus stolonifera Mx. Cornus sanguinea L. Middle Jura. 



CAPRIFOLI^. 



Linnjea borealis Gron. Linnsea borealis Gron. Lower Alps : 



Symphoricarpus occidentalis R. Br. Valais. 



T • -n T r Inthere- 



Lonicera parviflora Lans. Lonicera Caprifollum L. ^ion of 



" hirsuta Eaton. Var. Douglasii. " Periclimenum L. \ the vine- 



l_ yards. 

 1^ " involucrata Spr. Saskatshew- " involucrata, Spr. Siberia L. 

 an, Oregon, Rocky Moun- alpigena which resembles it 



tains, California. somewhat, occurs in the 



Jura and the Alps. 

 Sambucus pubens Mx. Sambucus racemosa L. Cr. du Vent. 



Viburnum Opulus L. Viburnum Opulus L. Belongs in Eu- 



rope to the region of the beech. 

 (Fagus sylvatica.) 

 " pauciflorum Pyl. 



