[SIR J. w. DAWSON] ON THE GENUS LEPIDOPHLOIOS IT 



DESCEIPTION OF THE PLATES. 



Plate I. 

 Lepidophloios ^carfiantts— Impression of the leaf -bases on sandstone. 



Plate 11. 



Part of the same trunk, and surface of bark Immediately below the leaf-bases, and 

 epidermis showing punctiform marks like Bothrodendron of Lindley and 

 Hutton. 



Plate III. 



The same — Portion of bark with leaves attached. 



Plate IV. 



The same — Leaf-bases of a large and old stem, above ; below, cones or strobiles seen 

 transversely and longitudinally, also a detached scale or Lepidophyllum. 



Plate V. 

 The same— Horizontal branch showing arrangement of cone-scars above and below. 



Plate VI. 



The same — Transverse section of axis, magnified, showing outer and inner ring of 

 scalariform fibres (upper figure x 20, lower figure x 48) with leaf-bundles at 

 outer margin of axis and spaces representing their sheaths. 



Plate VII. 



The same, or possibly the upper figure a true Bothrodendron. The lower figure a 

 branch in the Halonia state, but at one spot near the right hand showing a 

 few perfect leaf -bases. 



Plate VIII. 



The same — Halonia state of a branch or small stem, showing very distinct cone- 

 scars. 



Plate IX. 



Lepidophloios Cliftonensis. — Portion of stem showing reflexed leaf-bases and the 

 drooping position of the basal portion of the long leaves. 



Plate X. 



The same — Upper figure a fertile branchlet with cone. Lower figure an ordinary 

 branch. 



Plate XI. 

 Ulodendron of the type of U. majum, L. and H. Half natural size. South .Joggins. 



Plate XII. 



Ulodendron allied to U. minus, L. and H. Upper figure showing cone-scars and 

 leaf -bases. Lower figure, reverse of same specimen, showing leaf-bases and 

 leaves. 



