Tab. XXVI. 



A. DiCKSONiA Pavoni, Hook. — p. 74. 



Fig. 1. Portion of a fertile frond; nat. size. Fig. 2, 3. Por- 

 tions of segments with sori ; more or less magnified. 



B. DicKsONiA adiantoides, H.B.K. — p. 75. . 



Fig. 1. Portion of a fertile frond; nat. size. Fig. 2, 3. Por- 

 tions of segments, with sori ; more or less magnified. 



C. DiCKSONIA APIirOLIA, Sw. — p. 77. 



Fig. 1. Portion of a fertile frond; nat. size. Fig, 2. Pinnule 

 of ditlo ; magnified. Fig. 3. Segment with sorus ; more 

 magnified. 



