Rhizome short. Fronds clustered; stipe stiff, grooved, scaly and somewhat hairy, brown; lamina narrow, 10–20 (–30) cm tall, 1–2 cm broad, suboppositely 2-pinnate; deeply pinnatifid, rachis and veins below densely covered with pale brown scales. Sori marginal, continuous, partially protected by inrolled margin of lamina.
N.Is.: Ball Bay, R.D.Hoogland 11309 (CANB, K); N side of Mt Bates, R.D.Hoogland 11317 (CANB, NSW); Duncombe Bay, P.S.Green 2432 (K). L.H.Is.: Malabar Hill, M.M.J. van Balgooy 1089 (CANB, NSW); 'Lower Rd', SW base of Mt Lidgbird, A.N.Rodd 1393 (K, NSW).
PellaeaLink Fil. Sp. 59(1841) named from the Greek pellaios (dark), in allusion to the generally dark stipes in these ferns
Type: P. atropurpurea (L.) Link
Terrestrial ferns. Rhizome short and thick or long-creeping, covered with narrow scales. Fronds: stipe erect, wiry, dark-coloured, shining; lamina pinnate, palmate (or pedate elsewhere), usually glabrous; pinnae uniform, sessile or shortly stalked, entire, often coriaceous, with veins free. Sori marginal, linear or oblong, merging laterally, protected by reflexed margin of lamina.
A genus of c. 80 species, especially from tropical and subtropical South America and South Africa. 2 species native to Lord Howe Is.
Pinnae 10–35 pairs, 5–10 mm broad; rachis manifestly scaly
1. P. falcata
Pinnae 2–8 pairs, 12–30 mm broad; rachis slightly rough, almost naked
2. P. paradoxa
falcata(R.Br.) Fée Gen. Filic. 129(1852)
Pteris falcata R.Br., Prodr. 154 (1810).T: New South Wales and Tasmania, R.Brown; syn: BM. The epithet comes from the Latin falcatus (sickle-shaped), in allusion to the shape of the pinnae.
Illustrations: D.L.Jones & S.C.Clemesha, Austral. Ferns & Fern Allies 2nd edn, 179, fig. 241 (1981); D.L.Jones, Encycl. Ferns 5, 19, 342 (1987); P.G.Wilson in G.J.Harden, Fl. New South Wales 1: 25 (1990).
Rhizomes shortly creeping, closely covered with appressed, dark brown scales with a pale margin. Fronds: stipe 5–10 cm tall, dark brown; lamina erect, 12–40 cm tall, simply imparipinnate; rachis clothed with numerous light brown scales and hairs; pinnae ±sessile, 10–35 pairs, opposite or alternate, narrowly lanceolate to falcate, 2–5 cm long, asymmetrical at base, acute, ±coriaceous, almost glabrous. Sori in a dense band, especially on upper pinnae; laminal margins slightly reflexed.
Lord Howe Is. in the northern hills. Also known from eastern Australia, New Zealand, the Kermadec Is. and New Caledonia.
Growing in rocky places.
L.H.Is.: Kims Lookout, P.S.Green 1944 (K); W of Kims Lookout, J.C.Game 69/220a (K).
Adiantum paradoxum R.Br., Prodr. 155 (1810).T: Australia, R.Brown; holo: BM. So named because it was paradoxical in Adiantum, the genus in which it was first classified.
Illustrations: D.L.Jones & S.C.Clemesha, Austral. Ferns & Fern Allies 2nd edn, 179, fig. 242 (1981); S.B.Andrews, Ferns Queensland 343, fig. 34.7A (1990); P.G.Wilson in G.J.Harden, Fl. New South Wales 1: 25 (1990).
Rhizome with appressed, dark brown scales. Fronds: stipe 20–30 cm tall, blackish, with scattered, small, pale scales and hairs; lamina erect, 30–50 cm tall, simply imparipinnate; petiolules 2–7 mm long; pinnae 2–8 pairs, alternate, ovate to broadly lanceolate, 3–7 cm long, asymmetrical at base, entire, acute, ±coriaceous, glabrous. Sori dense, especially on upper pinnae; laminal margins slightly reflexed.
Lord Howe Is. Rare, recorded only once. Also known from Qld and N.S.W.
L.H.Is.: S side of Malabar, A.C.Beauglehole 5752 (MEL).
Pellaea rotundifolia (G.Forst.) Hook. has been recorded from Norfolk Is. (W.J.Hooker, Sp. Fil. 2: 136, 1858 and G.Bentham, Fl. Austral. 7: 730, 1878), but no collections from the Island have been seen. These records trace back to G.Kunze (Linnaea 23: 219, 1850), under the name Allosorus rotundifolius (G.Forst.) Kunze, but no specimens are cited by him. It is suspected that specimens distributed by the Botanical Society of London, communicated by H.C.Watson in 1844, labelled 'From a collection of ferns made by one of the Cunninghams in New Zealand and Norfolk Island' (specimen at Kew) may have led, erroneously, to this record.
P.S.GreenRoyal Botanic Gardens, Kew, Richmond, Surrey, TW9 3AB, England
Epiphytic ferns. Rhizomes usually short, creeping, with narrow clathrate scales. Fronds simple, linear to ovate or obovate, entire; fertile fronds not differentiated; veins reticulate, forming elongate areoles, without free veinlets. Sori elongate, distributed along veins, usually submarginal, sometimes reticulate, without indusia, often in a groove, when young protected by paraphyses.
A small tropical family of 9 genera and c. 100 species. One genus native to Norfolk Is.
VittariaSm. Mém. Acad. Roy. Sci. (Turin) 5: 413, t. 9(1793) named from the Latin vitta (a ribbon), in allusion to the ribbon-like shape of the fronds in the type, and other, species
Type: V. lineata (L.) Sm.
Rhizome shortly creeping, covered with brown scales at apex. Fronds crowded, narrowly to broadly linear, erect or drooping. Sori linear, along a submarginal vein, ±immersed in a groove; paraphyses numerous.
A pantropical genus of 50 or more species. One species native to Norfolk Is.
Illustrations: D.L.Jones, Encycl. Ferns 180, 384 (1987); S.B.Andrews, Ferns Queensland 380, fig. 38.2A (1990); P.G.Wilson in G.J.Harden, Fl. New South Wales 1: 28 (1990).
Rhizome shortly creeping; scales dark brown, with hair-like apices. Fronds ±sessile, linear, gradually tapered at base and apex, 10–30 (–40) cm long, 3–5 mm broad; midrib ±obscure. Sori linear, in a deep marginal groove.
Norfolk Is. Not common. Also known from India and Malesia to Australia (Qld and N.S.W.) and the tropical Pacific islands, including New Caledonia and Fiji.