EXPLANATION OF PLATES. 135 



Fig. 3. Portion of a pinna with pinnules of the largest size. 

 Fig. 4. Portions of pinnse showing broad rounded pinnules. 

 Figs. 5, 5 a. Cladophlebis subfalcata, spec. nov. Page 49. 

 Fig. 5. Shows the normal character. 

 Fig. 5 a. Pinnule of Fig. 5, magnified to show nervation. 



PLATE XXX. 



Figs. 1-4 a. Pseudodanaopsis reticulata, spec. nov. Pages 59 to 60. 



Fig. 1. Portion of the frond restored, showing pinnules of large size. 



Fig. 2. Fragment of a very large pinnule. 



Fig. 2 a. Portion of Fig. 2, magnified to show nervation. 



Fig. 3. Portion of a frond with pinnules of the smaller kind. 



Fig. 4. Upper part of a compound pinna with small pinnules. 



Fig. 4 a. Portion of a pinnule of Fig 4, much magnified to show nervation. 

 Fig. 5. Sagenopteris rhoifolia, Pr. Page 63. Fragment of a leaflet. 

 Fig. 6. Dicranopteris, Spec. (?). Page 63. Gives a fragment of a leaf like Dicranopteris. 



PLATE XXXI. 



Figs. 1,2. Pseudodanaopsis 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. Clathropteris platyphylla, var. expansa, 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. 



PLATE XXXII. 



Fig. 1. Clathropteris platyphylla, var. expansa, Sap. Pages 54 to 58. Represents a segment with incom- 

 plete margins, but quite long 



Figs. 2-4. Pterophyllum affine, Nathorst. Pages 66 to 67. 

 Fig. 2. Fragment with the broadest leaflets. 

 Fig. 3. Fragment of leaf with average-sized leaflets. 

 Fig. 4. Fragment with leaflets of the narrowest kind. 



PLATE XXXIII. 



Fig. 1. Clathropteris platyphylla, var. expansa, Sap. Pages 54 to 58. Shows the basal undivided part of 



the frond. 

 FlG. 2. Podozamites Emmonsi (P. lanceolatus of Emmons). Pages 77 to 78. Gives a form with leaflets 



rather narrower than the normal form given by Emmons . 

 Figs. 3-4 a. Ctenophyllum taxinum (Lind. and Hut.). Pages 67 to 68. 

 Fig. 3. Lower portion of a leaf. 

 Fig. 4. Upper portion of a leaf. 

 Fig. 4a. Leaflet of Fig. 4, magnified to show nervation. 



