VEGETATION OF THE NORTHERN SHORES. 



165 



Lake Supekior. 



Abies alba Mx. 



" canadensis Mx. 



" nigra Poir. 



" balsamea Marsh. 



Larix americana Mx. 

 Thuja occidentalis L. 

 Junlperus communis L. 

 " virginlana L. 

 Taxus canadensis Willd. 



Europe. 



coniferm. 



Abies excelsa DC. Forests of the 

 Jura. 



" pectinata DC. Forests of the 

 Jura 

 Larix europea DC. High Jura. 



Juniperus communis L. >. 



Sabinai. [- ^j'J^f j'jf 

 Taxus baccata L. ) 



The resemblance of the Coniferse of Lake Superior to those of the subal- 

 pine region is very striking, for though they are not of the same species, the 

 analogy of the forms is so great, that it requires the eye of a botanist to be satis- 

 fied positively that these forests are not composed of identical trees in the two 

 hemispheres. 



alisi\iaceje:. 



Triglochin elatum Nutt. 



Mcrostylis ophioglossoides Nutt. 



Corallorhiza multiflora Nutt. 

 " Macrsei* Gray. 



Gymnadenia tridentata Lindl. 

 Platanthera psycodes Gr. 



" orbiculata Lindl. 



" Hookeri Lindl. 



" dilatata L. 



" obtusata Lindl. 



Goodyera repens R. Br. 



" pubescens R. Br. 

 Listera cordata R. Br. 

 Cypripedium pubescens WUld. 



" acaule Ait. 



See also the second list. 



ORCHIDEX. 



Microstylis monophyllos Lindl. In the 



Sub-Alps. 

 Corallorhiza innata R. Br. Pine forests 



in the Sub- Alps. Creux du Vent. 

 Gymnadenia conopsea L. 

 Platanthera bifolia Rich. 



Goodyera repens R. Br. 



Listera cordata R. Br. Sub-Alps. 

 Cypripedium Calceolus L. 



* " CoEALLORHizA MACE.'Er (sp. nov.) : scapo multifloro ; floribus (pro genere maxi- 

 mis) brevissime pedicellatis ; petalis ovali-oblongis ; labello ovali integerrimo basi 

 utrinque auriculato-inflexo, palato prominulo subbilamellato in plicam antice produc- 

 tam desinente ; calcare plane nullo ; columna subalato-triquetra ; capsula ovoidea. 

 In umbrosis humidis ad ' Caledonia Springs,' Canada Occidentali detexit beatus W. F. 

 Macrae, ann. 1843, exemp. fructif. Nuper in insula 'Mackinaw' floriferam legerunt 

 celeb. Agassiz et C. G. Loring, Jr. — Radix ignota. Scapus pedalis. Flores purpuras- 

 centes : sepala et petala seiniunciam louga !" A. Gray. 



