Tin: FLORA OF THE COAL FORMATION. 



451 



Fig. 168. — Lepidodendron corrugatum. 



A, Restoration. 



B, Leaf, iiat. size. 



C, Cone and iiianch. 



D, Brancli and leaves. 



E, Various forms of leaf areoles. 



F, Sproangiiim. 



G, Scalariform vessel, magnified. 

 II, I, K, L, M, Bark with leaf-scars. 

 N, Do. of old stem. 



O, Decorticated stem (Knorria). 



