Explanation of Plate XVI. 



Aspleniutn sylvaticum Presl. p 163. 

 Figs. 1, 2. Pinnae, showing variation in margin. X l« 



Asplenium shepherdi Spreng. p. 164. 

 Figs. 3, 4. Pinnae from different fronds. None of the sori reach the 

 midrib. X i- 



Asplenium radicans Schk. p. 164. 

 Fig. 5. Pinna. None of the sori diplazioid. X i- 

 Fig. 6. Pinna. Some of the sori diplazioid. X 1. 



