[Polypodium diversifolium auct. non Willd.: W.R.B.Oliver, Trans. & Proc. New Zealand Inst. 49: 124 (1917)]
Epiphytic, lithophytic or terrestrial ferns. Rhizome creeping, 4–10 mm diam.; scales broadly lanceolate, 3–5 mm long, 1.5–3 mm broad, acute to abruptly acuminate. Fronds (simple?), trisect (rarely), or pinnatisect; stipe 10–25 cm long; lamina 15–35 cm long, shortly decurrent onto stipe at base; lobes 2–14, 3–20 cm long, 0.8–2 cm broad, blunt to acute, glabrous. Sori manifestly sunken, globose, 1.5–3 mm diam., about 1/3 of the way in from margin to midrib.
Lord Howe Is. Endemic.
Frequent on mossy rocks, decaying stumps etc. in forested areas.
L.H.Is.: SE lower slopes of Malabar, P.S.Green 1561 (K, NSW); Neds Beach, A.N.Rodd 1486 (NSW); track to Smoking Tree Ridge at Big (Deep) Ck, J.C.Game 69/119 (K); Big Slope, 1972, H.J. de S.Disney (NSW).
Polypodium scandens G.Forst., Fl. Ins. Austr. 81 (1786); Microsorum scandens (G.Forst.) Tindale, Amer. Fern J. 50: 241 (1960).T: 'Society Islands', J.R. & G.Forster; lecto: BM, fide M.D.Tindale, Amer. Fern J. 50: 241 (1960). The epithet comes from the Latin scando (I climb), in allusion to the habit.
Illustrations: D.L.Jones & S.C.Clemesha, Austral. Ferns & Fern Allies 2nd edn, 171, fig. 228 (1981), as Microsorum scandens; S.B.Andrews, Ferns Queensland 282, fig. 28.4C (1990), as Microsorum scandens; P.J.Brownsey & J.C.Smith-Dodsworth, New Zealand Ferns & Allied Pl. 63, fig. 62, 65, fig. 66, t. 14C (1989).
Epiphytic, lithophytic or terrestrial fern, climbing. Rhizome elongate, slender, 2–7 mm diam.; scales dense, narrow, 4–5 mm long, 1–1.2 mm broad at base, squarrose, clathrate, dark brown, persistent. Fronds simple or usually pinnatisect: stipe 5–15 cm long, glabrous except at articulated base; lamina 10–40 cm long, long-decurrent onto stipe; lobes 1–3 on each side of winged midrib, 1–10 cm long, 0.4–1 cm broad, long-acute, glabrous; veins reticulate, not forming a wavy submarginal vein. Sori ±immersed, globose to oval, 1–2.5 mm diam., submarginal.
Lord Howe Is. Occasional to frequent on the mountainous southern end of the Island. Also known from eastern Australia (Qld to Tas.) and New Zealand.
Occurs in forest.
L.H.Is.: Upper Erskine Valley, A.N.Rodd 3707 (NSW); summit plateau of Mt Gower, J.Pickard 2627 & 2631 (NSW).
This species has been cited from Norfolk Is. by M.D.Tindale (Contr. New South Wales Natl. Herb. Fl. Ser. 201: 42, 1961) with the comment that she has 'not seen any specimen of M. scandens from Norfolk Island'. A convincing collection from Norfolk Is. has not been seen in the preparation of this treatment either, but there is a specimen, formerly part of Christensen's herbarium, now at the British Natural History Museum (BM), labelled 'Norfolk Island', No.4' and attributed to Cunningham (but not in Cunningham's hand). In the absence of any other collection of this species from the Island, this specimen must be considered to have been mislabelled.
Small epiphytes or lithophytes. Rhizomes erect or shortly creeping, rarely long-creeping; scales shining brown, often with unicellular hairs. Stipes usually crowded, usually with spreading unicellular or branched hairs. Fronds uniform, simple or more rarely pinnatifid or pinnate; pinnae sessile, entire or toothed, with unicellular or branched hairs; veins usually free. Sori round to elliptic, superficial or immersed; without indusia.
A family of c. 10 genera and c. 400 species, mainly tropical, and characteristic of montane cloud-forest; 1 genus native on Lord Howe Is. Previously included in the Polypodiaceae.
GrammitisSw. J. Bot. (Schrader) 1800(2): 17(1801) from the Greek gramma, grammikos (a written character, linear), in allusion to the sori forming narrow lines in these ferns
Type: G. marginella (Sw.) Sw.
Small epiphytes. Rhizomes short, ascending or creeping, with scales at apex. Fronds crowded, not articulated with rhizome, simple, entire or rarely irregularly lobed, usually attenuate at base and apex, usually with setose hairs, sometimes glabrous, without scales; veins simple or forked, rarely slightly reticulate, without free included vein endings. Sori usually superficial, usually in a single row on each side of midrib, round or elongate.
A pantropical genus of c. 160 species; 3 species endemic to Lord Howe Is.