FloraOfNewZealand-Ferns-20-BrownseyPerrie-2018-...
Tectariaceae is a medium-sized pantropical family which extends to southern temperate regions and is represented in New Zealand by a single species. Arthropteris tenella is an indigenous species which occurs in coastal and lowland areas of the North Island, but is absent from the central high country, and in the South Island is confined to coastal and lowland parts of Marlborough, Nelson and north Westland, with an outlying population on Banks Peninsula. It is found also in eastern Australia, Norfolk Island and Lord Howe Island. It is a forest species and one of the few genuine climbing ferns in New Zealand, but is often found scrambling over rock when still juvenile. Arthropteris tenella is characterised by pinnate fronds, shallowly lobed pinnae which are jointed to the rachis, and round exindusiate sori near the lamina margins.
The family placement of Arthropteris has been contentious for many years, but analysis of plastid and molecular markers now suggest its placement in the Tectariaceae.
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