Hymenophyllum peltatum (Poir.) Desv.

Alpine Filmy-fern

Mém. Soc. Linn. Paris 6: 333 (1827) APNI

Taxonomic status:Accepted

Occurrence status:Present

Establishment means:Native

Rhizome creeping, fine, with scattered red-brown hairs. Fronds irregularly spaced, erect to drooping, 4–12 cm long. Rachis very narrowly winged, dark brown. Lamina up to 2-pinnate, divided on one side of primary pinnae only (towards frond tip), narrowly oblong or sometimes short and stout (and more like H. cupressiforme), dark green with brown vein, ultimate segments linear; margin coarsely serrate; apex blunt. Sori small, in groups of 1–4 on short lateral segments arising from secondary rachis (adjacent to main rachis), not or only slightly immersed in lamina, appearing stalked when mature; indusium deeply 2-lipped, a little wider than segment, elliptic, apical margins entire; indusium becoming brown, stiff and recurved when mature, exposing sporangia on elongate receptacle.

CVU, HFE, HNF, HSF, OtR, SnM, Strz, VAlp. Also NSW, Tas. (including Flinders Is.). New Zealand, South America, South Africa, Europe. Usually alpine or subalpine, but occasionally found below 600 m altitude; commonly lithophytic on granite boulders. It is often overlooked when growing with the more robust H. cupressiforme.

Source: Entwisle, T.J. (1994). Ferns and allied plants (Psilophyta, Lycopodiophyta, Polypodiophyta). In: Walsh, N.G.; Entwisle, T.J. (eds), Flora of Victoria Vol. 2, Ferns and Allied Plants, Conifers and Monocotyledons. Inkata Press, Melbourne.
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Distribution map


Source: AVH (2014). Australia's Virtual Herbarium, Council of Heads of Australasian Herbaria, <http://avh.chah.org.au>. Find Hymenophyllum peltatum in AVH ; Victorian Biodiversity Atlas, © The State of Victoria, Department of Environment and Primary Industries (published Dec. 2014) Find Hymenophyllum peltatum in Victorian Biodiversity Atlas
  Bioregion Occurrence status Establishment means
Central Victorian Uplands present native
Highlands-Southern Fall present native
Highlands-Northern Fall present native
Otway Ranges present native
Strzelecki Ranges present native
Highlands-Far East present native
Victorian Alps present native
Snowy Mountains present native

State distribution

Distribution map
New South Wales