- Gleicheniales (the Forked ferns)
- Hymenophyllales (the Filmy ferns)
The ferns in the class Gleicheniopsida were formerly all included in the order Polypodiales. However, it is clear that the ferns are much too diverse a group to be shoehorned into one order. In fact, it may be found that this class needs to be divided into at least two classes.
Last updated: 05-24-2005 11:39:00