Common name: Common Filmy Fern
Hymenophyllum cupressiforme Labill. APNI*
Synonyms: Hymenophyllum antarcticum C.Presl APNI*
Description: Rhizome long-creeping, much-branched, dark and wiry, young parts sparsely covered with red-brown hairs.
Fronds 2–9 cm long; stipe not winged, 0.5–3.5 cm long; rachis with a narrow, entire or toothed wing; lamina 1–3-pinnate, mostly 1-pinnate with primary pinnae pinnatifid, glabrous, 1.5–6 cm long and 1.5–2.5 cm wide, margins toothed.
Sori borne on the upper side of the secondary rachises, terminal on short lateral segments; involucre obovate, apex rounded; receptacle club-shaped, included or slightly exserted.
Distribution and occurrence: Usually found growing in mats on rocks in rainforest, also in protected sites in drier areas.
NSW subdivisions: NC, CC, SC, NT, CT, ST, CWS
Other Australian states: Qld Vic. Tas.
Text by Peter G. Wilson
Taxon concept: Flora of NSW 1 (1990)
APNI* Provides a link to the Australian Plant Name Index (hosted by the Australian National Botanic Gardens) for comprehensive bibliographic data
***The AVH map option provides a detailed interactive Australia wide distribution map drawn from collections held by all major Australian herbaria participating in the Australian Virtual Herbarium project.