Ferns and Fern Allies of Wisconsin
Key

1. Plants free-floating on the surface of water, not attached to the bottom. Two tiny species of aquatic ferns, treated only briefly here   Azolla 1. Plants attached to soil or rocks, habitat dry, wet or even submersed, but plants not normally floating.   2

Key to ferns (start) Glossary of terms Introduction to ferns List of all Pteridophytes Contact the author Acknowledgments UW-Green Bay Herbarium homepage