136 THE OLDER MESOZOIC FLORA OF VIRGINIA. 



PLATE XXXIV. 



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



a large frond. 

 Figs. 2-4 a. Ctenophyllum Braunianum, Goepp. Pages 69 to 73. 



Fig. 2. Fragment of the lowest part of a leaf next to the leafless petiole. 



Fig. 3. Fragment from the upper part of a leaf. 



Fig. 4. Fragment from the middle part of a leaf. 



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



PLATE XXXV. 



Fig. 1. Ctenophyllum Braunianum, Goepp. Pages 69 to 73. Fragment of the upper part of a large leaf. 

 Figs. 2,2a. Clathropteris platyphylla, var. expansa, Sap. Pages 54 to 58. 



FIG. 2. Fragment of a very large segment. 



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



'PLATE XXXVI. 



Figs. 1, la, 16, lc. Pterophyllum inozquale, spec. nov. Pages 64 to 65. 

 Fig. 1. Leaf of normal kind. 

 Fig. la. Summit of Fig. 1. 



Fig. 1 b. Portion of a leaflet from the lower part of Fig. 1. magnified to show nervation. 

 Fig. 1 c. Portion of a leaflet from Fig. 1 a, magnified to show nervation. 



PLATE XXXVII. 



FlGS. 1-2. Ctenophyllum Braunianum, Goepp. Pages 69 to 73. 

 Fig. 1. Upper portion of a large leaf. 

 Fig. la. Portion of the petiole of Fig. 1. 

 Fig. 2. Fragment of a middle portion of a leaf, showing leaflets unusually distant. 



PLATE XXXVIII. 



Figs. 1-2 a. Ctenophyllum Braunianum, Goepp. Pages 69 to 73. 



Fig. 1. Summit of the large leaf given in Fig. 1, Plate XXXVII. 



Fig. 2. Upper portion of a leaf, showing the rounded form of the midrib on the under side. 



Fig. 2 a. Base and summit of a leaflet of Fig. 2, magnified to show nervation. 

 Figs. 3-5. Ctenophyllum truncatum, spec. nov. Pages 68 to 69. 



Fig. 3. Upper portion of a leaf. 



Fig. 4. Portion of a leaf, with the leaflets all broken at base. 



Fig. 5. Shows natural position of leaflets in Fig. 4. 



PLATE XXXIX. 



FlGS. 1-3 a. Ctenophyllum grandifolium, spec. nov. Pages 73 to 76. 



Fig. 1. Fragment of the lower part of the leaf, showing the great width of the flat stem. 



Fig. la. Portion of Fig. 1, magnified to show the insertion of the nerves. 



Fig. 2. Portion of the middle of a leaf with remote leaflets ; also showing the thick epidermis of the 



stem and the efl'ect of it in increasing the apparent width of the stem. 

 Fig. 3. Fragment of the upper part of a leaf. 



Fig. 3 a. Portion of a leaflet of Fig, 3, magnified to show nervation. 

 FlG. 5. Ctenophyllum giganteum, spec. nov. Pages 76 to 77. Shows a portion of a leaflet of a huge Cteno- 

 phyllum. The basal portion of the leaflet is that given here. 



