VEGETATION OF THE NORTHERN SHORES. 



175 



II. 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 maritirnus Bigel. 

 palustris L. 



Oenothera biennis L. 



Myriophyllum spicatum L. 

 Slum lineare MX. 

 Bidens eernua L. 

 Lysimachia stricta Ait. 



" ciliata L. 

 Naumburgia thyrsiflora L. 



Veronica americana MX. 



Lycopus virginicus L. 

 sinuatus Ell. 

 Polygonum amphibiuin L. 



M}Tica Gale L. 

 Salix Candida Willd. 



" lucida MUM. 



" discolor Muhl. 



" 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 Sj). Black forest. 



Meadows and margin of lakes. 

 Cakile rnaritirna 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 eernua 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 amphibiuin 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. 



