THE CARBONIFEROUS FLORA. 



121 



Fig. 44. — LepidopMoios Acadianus, Dawson, a lepidodendroid tree of the 

 coal-formation, a, Eestoration. b, Portion of bark (two thirds natural 

 size), c, Ligneous surface of the same, f, Cone (two thirds natural size). 

 g, 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). 



