56 Cincinnati Society of Natural History. 



Lepidodendron gaspianum, Dawson. 

 Plate VI., fig. 2. 



The specimen now figured is evidently a branch of Lepidodendron, 

 and undistinguishable from Sir William Dawson's species. It 

 would, however, be unwarranted to assert that it is the same, since 

 the material for comparison is so meagre, but it is evident that if 

 not the same, it is a closely allied species. The description of 

 Lepidodendron Gaspianum was published in the Canadian Naturalist 

 and Geologist, Vol. X., No. 1, p. 8 (i860), and was based on speci- 

 mens said to occur in considerable abundance in the Devonian rocks 

 of Gaspe, Canada. 



The Gaspe series has a thickness of several thousand feet, and 

 covers the entire interval between the Upper Silurian and the 

 Lower Carboniferous. The plants are found from top to bottom 

 of the section, and some of the beds — though all shore deposits — 

 must be of the same age as our Middle Devonian Corniferous lime- 

 stone. There is, therefore, no good reason why some of the 

 fossils should not be of the same species, even though the localities 

 are widely separated. 



