1. Lomazia procera 



i^„, . '*°- ' fertilB frond 



2. Oleldienla, clrcinata 



3. Trichomanes renUoiAie 



P LATE I I, 



TWO-THIRDS NATURAL SiZE, 



t. Polypodlum BUlardlerl, simple frond, fertile 

 IJ- ?»• pimmUid frond, barren 



*°- "»■ do. fertile 



