Tab. CLIII. 



Blechnum DOODioiDES, Hook. — p. 60. 



Portion of a sterile frond, and the superior portion of a fertile 

 frond, seen from beneath ; nat. size. Fig. 1 . Portion of a 

 sterile segment, showing the venation ; magnified. Fig. 2. 

 Portion of a fertile segment, showing the venation, the par- 

 tial anastomosing of the veins, and the interrupted Doodia- 

 like sori ; magnified. Fig. 3. Small portion of a fertile 

 segment, with sorus and involucres ; magnified. 



