280 PROCEEDINGS OF THE GEOLOGICAL SOCIETY. [Jail. 4, 



laria Hausmanni, Goepp., found by M. Hausmann in 1807 (Reise 

 in Scandinavien, vol. v. ; Rjerulf, Geolog. der siidlichen Norwegens, 

 p. 87) near Idre and Sarne. It is perhaps the most interesting plant 

 of the whole work. 



2. Middle Devonian 1 species. 



One terrestrial plant, Sagenaria Weltheimiana, from the schist of 

 Hamilton County, New York ; hut you and M. Verneuil consider 

 that these beds belong to the Upper Devonian formation, in which, 

 in Silesia, Thuringia, Ireland, and in the so-called Chemung ? and 

 Catskill formations of the State of Few York, a much larger number 

 of terrestrial plants has been found, amongst which this species of 

 Sagenaria also occurs. 



3. Upper Devonian 57 species. 



This formation contains fifty- seven species, of which seven belong 

 to the Algae ; the others are terrestrial, and belong to the families 

 which are found up to the close of the Palaeozoic period, viz. the 

 Ferns, Calamines, Equisetaceai, Lepidodendrece, Lycopodiacece, Sigil- 

 lariece, Coniferee, and Noeggerathiece. The Devonian flora comes in 

 here with four species, the " Culm" flora with the same number, 

 and the flora of the " youngest grauwacke " (Murchison) with seven 

 species. 



III. Carboniferous Formation. 



Here we must distinguish a lower and an upper Carboniferous 

 formation, the floras of which are different. 



1. Lower Carboniferous 108 species. 



In regard to the flora, this is very different from the Upper Car- 

 boniferous formation. It contains the flora of the Mountain-lime- 

 stone (Bergkalk or Kohlenkalk), the flora of the " Culm," and of the 

 " youngest grauwacke " (Murchison). 



a. The flora of the Mountain-limestone or Kohlenkalk contains 

 forty-seven species — one Alga and forty-six terrestrial plants, which 

 belong to the same families as occur in the Upper Devonian for- 

 mation. 



o. The flora of the "Culm" (Kulmgrauwacke, inclusive of the 

 Posidonomyenschiefer) contains twenty-three species, of which four 

 belong also to the flora of the " youngest grauwacke." Only one 

 marine plant occurs ; the others are terrestrial. 



c. The flora of the Grauwacke ("youngest grauwacke" of Mur- 

 chison) contains fifty-one species (all terrestrial), of which only seven 

 have been found in the Upper Carboniferous formation* . One single 

 species, Neuropteris LosJiii, has been found in the Mountain-Ume- 



* Professor Goeppert (in Nova Acta, loc. cit.) gives 814 as the number of 

 vegetable species known to him in the Upper Carboniferous formation, and 182 

 for those of the Permian, making altogether 1181 Palaeozoic species of plants. 

 —Ed. 



