ASPIDIE^. 



Presl, in his "Tantamen Pteridographise," places under Aspi- 

 diaceoe the following: — 



1. — Lastrea seventy-seven species. 



2. — Oleandra, four species. 



3. — Nephrolepis , twenty -four species. 



4. — Nephrodium, twenty-four species. 



5. — Polystichum, fifty species. 



6. — Phanerophlehia, one species. 



7. — Cyclodium, three species. 



8. — Cyrtomiurriy two species. 



9. — Sagenia, six species. 

 10. — Aspidium, eleven species. 

 11. — Didymochlcena, one species. 

 In all about two hundred species. 



