This page is archived. It is kept for historical reference, so it is no longer being updated and may not meet accessibility standards.


Gary Fewless

Key to the Ferns

45. Some pinnules (usually not those on pinnae near the base or tip of each frond) have a basal auricle at their base pointing toward the tip of the frond; indusium attached at its center (peltate) and radially symmetrical, without a sinus on one side; leaves evergreen.
45.5
45. No pinnules with basal auricles; indusium attached at a sinus on one side, therefore not radially symmetrical, sometimes described as kidney-shaped; leaves evergreen or not. 46

Return to start of fern key