I 



TAB. XI. 



FiLiCES — continued. 



Fig. 1. Hymenophtllum. —a. Fertile portion of a frond, h. 



Involucre laid open, c. Capsule. 



OSMUNDACE^. 



Fig. 2. OsMTJNDA. — a. Portion of a fertile panicle. J. Portion 



of a sterile frond, the lower part fertile, e. d. Cap- 

 sules. 



OPHIOGLOSSACE^. 



Fig. 3. BoTRTOHiuM. — a. Frond with its fructified portion. 



&. Sterile pinna, c. Capsules on the rachis. 

 Fig. 4. Ophioglossum. — a. Frond with fructified portion. 



6. Portion of the frond, c. Portion of the fertile 



spike. 



^f 



