( «9 ; 
PLATE XXXV. LETTER XXXII. 
CRYPTOGAM1A FILICES. Ferns. 
Osmunda Spicant. Rough Spleenwort. 
Fig:. L The barren frond. 
Fig. 2. The fertile frond. 
Fig. 3. A single pinna magnified, with the 
scales at a a ; and covers of the 
capsules at h h. 
Fig. 4. A part of the pinna more magni¬ 
fied, with the anthers of the rib 
at a, and the membrane rolled 
back at h h , to exhibit the rudi¬ 
ments of the seed vessels at c c. 
