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Genus Nephrolepis Family Lomariopsidaceae

Description: Rhizome ± erect, covered with scales; stoloniferous; stipes clustered, not articulated to rhizome.

Fronds with membranous to almost leathery lamina, pinnate, veins free; stipe usually short, scaly.

Sori superficial; indusium reniform (to rounded).

Distribution and occurrence: World: c. 30 species, tropical & subtropical regions. Australia: c. 9 species, Qld, N.S.W., Vic., N.T., W.A.

N. exaltata Schott, the Boston Fern, is widely cultivated and has been reported as naturalised in the Sydney area. Nephrolepis is sometimes placed in the family Davalliaceae, Dryopteridaceae, Nephrolepidaceae or Polypodiaceae.

Text by Peter G. Wilson, Flora of New South Wales 1 (1990), under family Davalliaceae; revised May 2017, P.G. Kodela
Taxon concept: Australian Plant Census (accessed May 2017)

Taxa not yet included in identification key
Nephrolepis flexuosa

 Key to the species 
1Fleshy tubers present or absent; scales on the upper side of the rachis with a point of attachment distinctively darker than the rest of the scale; central pinnae close together with basal lobes often overlapping the next closest pinnae and the bases partly covering the rachis underneath; indusia kidney- to crescent-shaped or triangular-roundedNephrolepis cordifolia
Tubers absent; hairlike scales on the upper side of the rachis evenly coloured (without a distinctively darker area at point of attachment); central pinnae bases usually not overlapping as described above; indusia more rounded to horseshoe-shapedNephrolepis exaltata

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