Explanation of Plate XIII. 



Dicksonia rubiginosa Kaulf. p. 154. 

 Fig. 1. A basal pinnule, with part of main rachis. X i- 

 Fig. 2. A division of a segment. Magnified. 



Blechnum longifolium H. B. K. p. 155. 

 Fig. 3. A fertile frond. X 1. 

 Fig. 4. A pinna, showing venation under sorus. X 2. 



Asplenium aJatum H. B. K. p. 157. 

 Fig. 5. A pinna. X 1. 

 Fig. 6. A pinna. X !• 

 Fig. 7. Tip of the same frond as fig. 6. X 1. 



Asplenium lunulatum var. proliferum (Swz.) Mett. p. 158. 

 Fig. 8. Tip of a frond. X 1. 



