Explanation of Plate II. 



Trichomancs piisillum var. quercifolium (H. et G.) Bak. p. 130. 

 Fig. 1. A fertile frond. X i- 



Trichomanes bnic/iypus Kunze. p. 132. 

 Fig. 2. A fertile frond with piece of rootstock which is partly hidden 



by the lobe of the basal pinna. X i- 

 Fig. 3 A fragment of a pinna. X 2. 



Trichomanes pyxidiferum L. p. 132. 

 Figs. 4-6. Fertile fronds, showing variation in form and division. 



