/ 



THE CARBONIFEROUS FLORA. 



j.'l/, \V!:!/// ////, F. 



121 



FIG. 44. LepidopTiloios Acadianus, Dawson, a lepidodendroid tree of the 

 coal-formation. A, Kestoration. B, Portion of Dark (two thirds natural 

 size), o, Ligneous surface of the same. F, Cone (two thirds natural size). 

 o, Leaf (natural size). K, Portion of woody cylinder, showing outer and 

 inner series of vessels magnified. L, Scalariform vessels (highly magni- 

 fied). M, Various forms of leaf-scars and leaf-bases (natural size). 



