Key to Tasmanian Dicots

Tasmania has eight native species in three genera of the filmy ferns (family Hymenophyllaceae). These all grow in the understorey of wet forests on rocks or as epiphytes. The key feature is that the lamina is only once cell thick (and indeed, ecologically the filmy ferns function like large bryophytes). This results in  the filmy appearance of all but one of species that gives them name of filmy ferns. The exception is Sphaerocionium applanatum because it is densely covered in hairs.

Key to genera 
© 2019 University of Tasmania
Key to species