VEGETATION OF THE NORTHERN SHORES. 



175 



n. Plants of the lake and shores, which have or have not their analogous 

 representatives in Europe.* 



Lake Superior. 



Ranunculus aquatilis L. 

 " reptans L. 



Cardamine hirsuta L. 

 Barbarea vulgaris R. Br. 



Nuphar lutea Smith. Var. Kalmiana. 



Cakile americana Nutt. 

 Callitriche linearis Pursh. 



" verna L. 

 Lathyrus maritimus Bigel. 



" palustris L. 



Oenothera biennis L. 



Myriophyllum spicatum L. 

 Sium lineare Mx. 

 Bidens cernua L. 

 Lysimachia stricta Ait. 



" ciliata L. 



Naumburgia thyrsiflora L. 



Veronica americana Mx. 



Lycopus virginicus L. 

 " sinuatus Ell. 

 Polygonum amphibium L. 



Myrica Gale L. 

 Salix Candida Willd. 



" lucida Miihl. 



" discolor Miihl. 



" angustata Pursh. 



*' pedicillaris Pursh. 



" pumilis Marsh. 



Europe. 



Ranunculus aquatilis L. Everywhere. 

 " reptans L. Sand of the 



lake shores. 

 Cardamina hirsuta L. Moist places. 

 Barbarea vulgaris R. Br. Along 



ditches. 

 Nuphar pumila Sp. Black forest. 



Meadows and margin of lakes. 

 Cakile maritima L. Baltic Sea. 

 Callitriche autumnalis L. 



" verna L. In brooks. 



Lathyrus maritimus B. Marine plant. 

 " palustris L. Marshes of the 

 lakes. 

 Oenothera biennis L. Lake of Neu- 

 chatel. Introduced into Europe. 

 Myrioph. spicatum L. Quiet waters. 

 Sium angustifolium L. In brooks. 

 Bidens cernua L. Ditches. 

 Lysimachia vulgaris L. Marshes. 



" ciliata L. Marshes. 



Naumburgia thyrsiflora L. Near St. 



Blaise, Lake of Neuchatel. 

 Veronica Beccabunga L. Brooks and 



lakes. 

 Lycopus europseus L. Margins of 



waters. 

 Polygonum amphibium L. Margins 

 of quiet waters in diverse regions. 

 Myrica Gale L. Shores of the Baltic. 

 In Europe the same species of wil- 

 lows are found at the margin of 

 waters in diverse latitudes, but 

 most of them differ from the Amer- 

 ican species. The extensive dis- 

 tribution of these trees along the 

 shores of lakes and rivers at various 



* The number of aquatic plants found along the shores of Lake Superior, is so small, 

 that I have put them all together in this list, whether they have, or not, their analo- 

 gies in Europe. 



