1 1 



EXPLANATION OF FIGURES IN PLATE I. 



Microcladia borealis Rupr. 



Fig. 1. Diagram showing longitudinal section of the frond; a. the central axis. 

 Microcladia glandulosa Grev. (?). 



Microcladia corallinese (Mart.) Okam. 



Gloioth amnion Schmitzianum (Rbd.) Okam. 



Carpoblepharis flaccida Kiitz. 



