FOSSIL TLORA. 41 



PLATE XII. 



" Slender MyRiopnyLLiTE." 



The fossil here figured seems to approximate very closely to the Hydatica ; but Mr. Artis 

 describes the plant under the generic name of Myriophyllites ; — M. gracilis. The stem is herba- 

 ceous and slender, terminating in a point ; it is thickly covered with hair-like leaves. 



It was found imbedded horizontally, in detached masses, separated from the great mass of 

 vegetable matter which covers the coal, by an intervening layer of shale. It is rarely met with 

 in the same bed with other vegetables, but generally in solitary and thin strata, taking a hori- 

 zontal position ; so that by riving the shale which contains these plants, numbers of them are 

 disclosed on the same surface. In its general aspect this fossil vegetable resembles the trailing 

 roots of some aquatic plants. 



