Phylum, PTENOPHYTA 



Class, FiLiCES. Ferns. 



Subclass, EUSPORANGIATAE. 



Order, Opliioglossales. 



Ophiog-lossaceae. Adder-tongue Family, 



1. Ophioglossum vulgatum L. Adder-tongue. Rather generally 



distributed but local. 



2. Botrychiura simplex Hitch. Little Grape-fern. Cedar Point, 



Erie County. 



3. Botrychium neglectum Wood. Wood's Grape-fern. Northern 



counties. 



4. Botrychium lanceolatum (Gmel.) Angs. Lanceleaf Grape-fern. 



Geauga, Portage. 



5. Botrychium obliquum Muhl. Oblique Grape-fern. General. 



6. Botrychiura dissectum Spreng. Cutleaf Grape-fern. General. 



7. Botrychium virginianum (L.) Sw. Virginia Grape-fern. Gen- 



eral and common. 



Subclass, LEPTOSPORANGIATAE. 



Order, Filicales. 



Osmundaceae. Royal-fern Family. 



8. Osmunda regalis L. Royal-fern. General. 



9. Osmunda claytoniana L. Clayton's Fern. General. 



10. Osmunda cinnamomea L. Cinnamon-fern. General. 

 10a. Osmunda cinnamomea frondosa Gr. Wayne County. 



Polypodiaceae. Polypody Family. 

 Subfamily, polypodiatae. 



11. Polypodium vulgare L. Common Polypody. General in the 



eastern half of the state. 



12. Polypodivim polypodioides (L.) Hitch. Gray Polypody. Adams, 



Hamilton. 



13. Phegopteris phegopteris (L.) Und. (Dryopteris phegopteris 



(L.) Chr.) Long Beech-fern. Rather general but appar- 

 ently local. 



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