Terrestrial or epiphytc ferns rarely epiphytic of different sizes.
Rhizome erect or ascending, sometimes creeping, scales present basally
attached, more often non-clathrate, superficially glabrous, entire or dentate,
teeth usually consisting of appendages of two adjacent cells, glands may be
present on or beside the teeth. Stipe close, less often remote. Fronds simply
pinnate to decompound, or rarely simple, glabrous, hairy to scaly. Lamina often
oblong, triangular, or ovate type. Veins free, forked or variously
anastomosing, usually reaching the margin. Sporangia approximately orbicular
stalked, 2 or 3 seriate, indusia reniform, attached to the lamina by its middle
deep sinus Spores monolete.