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The Hymenophytaceae is represented by a single genus of dendroid
liverworts, Hymenophyton. There are two species of
Hymenophyton in Tasmania, H. falbellatum and H.
leptopodum.
Hymenophyton flabellatum is a very common
liverwort in wet forest and superficially resembles a small filmy fern (Hymenophyllum).
H. leptopodum is a much rarer species that is
smaller and exhibits less forking, and in a less regular fashion.
The frond tips are also notched.
The genus is also easily mistaken for more branched forms of
Symphyogyna
hymenophyllum but the latter is not as lobed, has teeth on
the thallus margins and bears sporophytes on the upper thallus
surface.
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