THE FLORA <>F THE COAL FORMATION. 



J.-.l 



Pig, 168. — Lepidodendron cormgatum. 



A, Restoration. 



B, Leaf, nat. size. 



C, Cone and branch. 



D, Branch and leaves. 



E, Various forms of leaf areoles. 



F, Sproangium. 



(,, Scalarifonn vessel, magnified. 



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



N, Do. of old stem. 



O, Decorticated stem (Knoii i 



