Although R.M.Laing (Trans. & Proc. New Zealand Inst. 48: 236, 1916) claimed to differentiate between Pteris brunoniana and P. incisa, his specimens (examined on loan from CHR), which correspond to his descriptions and figures, can be matched by specimens in a range of material from New Zealand and Australia, showing them to be different growth forms of the same species.
HypolepisBernh. Neues J. Bot. 1(2): 34(1805) from the Greek hypo- (under) and lepis (a scale), in allusion to the sori protected beneath a reflexed portion of the margin in these ferns
Type: H. tenuifolia (G.Forst.) Bernh. ex C.Presl
Rhizome hairy, scurfy or glabrous, lacking scales. Fronds distant; stipe stout, continuous with rhizome; lamina 2–5-pinnate, glabrous or hairy, often glandular; veins free; pinnules sessile, rachis grooved above. Sori marginal or submarginal, rounded, discrete, usually indusiate from a ±reflexed marginal flap of the lamina; paraphyses rarely present.
A mainly tropical genus of c. 45 species, with extensions into the warm temperate regions of the Northern and Southern Hemispheres, including South Africa, Australia and New Zealand.
Cheilanthes dicksonioides Endl., Prodr. Fl. Norfolk. 15 (1833); Hypolepis endlicherianum C.Presl, Tent. Pterid. 162 (1836), nom. illeg.T: Norfolk Island, F.L.Bauer; holo: W. Named from a presumed similarity of the fronds to those of Dicksonia.
[Polypodium rugulosum auct. non Labill.: S.F.L.Endlicher, op. cit. 7]
[Cheilanthes arborescens auct. non Sw.: S.F.L.Endlicher, op. cit. 15]
[Hypolepis tenuifolia auct. non (G.Forst.) Bernh. ex C.Presl: W.J.Hooker & J.G.Baker, Syn. Fil. 2nd edn, 129 (1874) p.p.; R.M.Laing, Trans. & Proc. New Zealand Inst. 47: 14 (1915); J.S.Turner et al., Conservation Norfolk Is. 30 (1968)]
[Phegopteris punctata auct. non (Thunb.) Mett.: J.H.Maiden, Proc. Linn. Soc. New South Wales 28: 730 (1904)]
[Dryopteris punctata auct. non (Thunb.) C.Chr.: R.M.Laing, Trans. & Proc. New Zealand Inst. 47: 10 (1915)]
[Hypolepis punctata auct. non (Thunb.) Mett.: J.S.Turner et al., Conservation Norfolk Is. 30 (1968)]
Illustrations: P.J.Brownsey & R.J.Chinnock, New Zealand J. Bot. 22: 66 (1984); P.J.Brownsey & R.J.Chinnock, J. Adelaide Bot. Gard. 10: 5, fig. 2C, 23, fig. 11 (1987); P.J.Brownsey & J.C.Smith-Dodsworth, New Zealand Ferns & Allied Pl. 96, fig. 117, 98, fig. 120, t. 22B (1989).
Rhizome apex densely covered with pale brown hairs. Fronds: stipe 30–60 (–100) cm tall, with pale glandular and non-glandular hairs when young; lamina 30–100 cm long or more, almost as wide, bipinnate at apex, becoming 3- or 4-pinnate towards base; rachis and its branches viscid with soft, pale glandular and non-glandular hairs 0.2–1.5 mm long, especially above; hairs on undersurface of lamina stoutish, 0.2–1.5 mm long; primary pinnae ±opposite, 15–50 cm long. Sori marginal, associated with ultimate segments, protected when young by reflexed, ear-like marginal lobes of lamina; lobes 0.3–0.8 mm wide, mostly green at base, membranous at apex, tapering, often with a few marginal, glandular hairs.
Ground Fern, Brake Fern.
Norfolk Is. Rare. Also known from the Kermadec Is., New Zealand (North Is. and the northernmost parts of South Is.), Samoa, the Society Is. and the Marquesas Is.