PLATE II. 



Figs. 1, la, 2. Equisetum Rogerai, Schimper. Pages 10 to 13. 



Fig. 1. Impression of a large stem showing nodes. 



Fig. la. Portion of the same magnified to show details. 



Fig. 2. Impression of a smaller stem on which the nodes are absent. 

 Fig. 3. A young plant, natural size, of Maerotcgniopteris magnifolia, Rogers. Page 19. 



