PLATE XXXI. 



Figs. 1,2. I'seudodanwopsis nervosa, spec. nov. Pages 61 to 63. 



Fig. 1. Portion of the plant showing pinnules of normal size. 



Fig. 2. Portion of the upper part of the plant. 

 Figs. 3,4. Clatliropteris platyphylla, var. ejrpansa, Sap. Pages 54 to 58. 



Fig. 3. Portion of a small segment showing only the cross-bars of the nervation. 



Fig. 4. Portion of a segment of normal size showing three teeth on the right-hand border and one 

 on the left-hand border. 



