VEGETATION OP THE NORTHERN SHORES. 



169 



Lake Superior. 



Selaginella selaglno'ides Spring. 

 " rupestris Spring. 



Europe. 



Selaginella selaginoides Spr. Pastures 

 of the lower Alps and the higher 

 Jura. 



The Equisetaceae, the Ferns, and the Lycopodiacese of Lake Superior are 

 almost absolutely the same species as those of the subalpine region of Europe. 

 As we descend the scale of the vegetable kingdom under higher latitudes, vege- 

 tation seems to follow the sides of an angle, as it were, which become convergent 

 about the zone of pine forests. Thus the Lichens and the Mosses are already 

 entirely the same species here as in Europe, and it will be sufficient to make a 

 single list of them, without indicating the corresponding European species, 

 since all are identical. Few Hepaticce are also enumerated. 



Mosses of Lake Superior. 

 Sphagnum capillifolium Brid. 

 " cuspidatum Brid. 



" squarrosum Hedw, 



Funaria hygrometrica L. 

 Grimmia apocarpa 



Var. rivularis B. et S. 

 Hedwigia ciliata Hedw. 

 Orthotrichum Hutchinsise H. et T. 

 " strangulatum Beauv. 



*' leiocarpum B. et S. 



" anomalum Hedw. 



Ceratodon purpureus Brid. 

 Dicranum scoparium Hedw. 

 " undulatum Ehrh. 

 " congestum Brid. 



Schraderi W. et M. 

 fulvum Hook. 

 longifolium Ehrh. 

 virens Hedw. 

 polycarpum Brid. 



majus Turn. 



glaucum L. 

 12 



Localities in the Jura. 

 Peat-bogs of the high Jura. 



u (( u u u a 



Peat-bogs of the Vosges and Hartz. 



This species belongs to the granitic 



peat-bogs. 

 Grows everywhere. 



Dripping rocks in the Alps and Jura. 



Everywhere on granite. 



(( (( (( 



Is missing in Europe, but replaced in 



the forests by a great number of 



analogous species. 

 Forests. 

 Stones. 

 Everywhere. 

 Forests. 

 Moist forests. 

 Forests of the higher Jura; descends 



never in the middle region of the 



pine forests. 

 Peat-bogs of the higher Jura. 

 Forests of the Alps. 

 Granitic blocks. 



Forests of the Alps and higher Jura. 

 Fissures of rocks, and the forests in 



the Alps. 

 Higher Jura ; descends never in the 



middle region. 

 Peat-bogs of the Jura. 



