Terrestrial fern. Rhizome creeping or shortly erect; apical scales dense, to 2.5 cm long, reddish-brown, acuminate. Fronds dimorphic; stipe to 45 cm long, scaly; scales with a basal black spot, dense and similar to those on rhizome for c. 8 cm from base, diminishing in size and density up stipe. Lamina of sterile fronds pinnate, linear to lanceolate or deltoid in outline, to 70 cm long, to 40 cm broad, with a few, scattered narrow scales; pinnae 24 pairs, often overlapping, narrowly lanceolate, 15–20 cm long, 2–2.5 cm broad, auriculate-hastate, serrulate-crenulate, long-acuminate; veins numerous and unbranched; basal pinnae reduced to auricles. Lamina of fertile fronds pinnate; pinnae narrowly linear, to 20 cm long, auriculate with auricles diminishing in size up the rachis, finely laciniate.
Lord Howe Is. Endemic.
Grows in shaded montane forest, especially on the summits of Mts Gower and Lidgbird.
L.H.Is.: near Dinner Run, J.Pickard 3621 (NSW); SE side of Mt Lidgbird, A.C.Beauglehole 5397 (MEL); S of Goat House, J.Pickard 3436 (NSW); summit of Mt Gower, P.S.Green 1659 (A); loc. id., J.C.Game 1/16B (BM, NSW).
This species is a member of the widespread and complex B. capense (Willd.) Schltdl. aggregate, and related to a number of species in this group from New Zealand and Australia.
fullagarii(F.Muell.) C.Chr. Index Filic. 154(1905)
Lomaria fullagarii F.Muell., Fragm. 8: 157 (1874), as fullageri.T: Lord Howe Island, Lind & J.P.Fullagar; holo: MEL; iso: K. Named after James Fullagar (fl. 1866), who collected on Lord Howe Is. for the Royal Botanic Gardens, Melbourne.
Lomaria auriculata Baker in W.J.Hooker & J.G.Baker, Syn. Fil. 2nd edn, 481 (1874), non Desv. (1811), nom. illeg.T: [Mt Gower], Lord Howe Island, C.Moore ; holo: K.
Illustration: C.J.Goudy, Austral. Fern. J. 1:  t. 8 (1984).
Terrestrial or lithophytic fern. Rhizome prominent; apical scales narrow, twisted, c. 1.5 cm long, long-pointed. Fronds dimorphic, clustered; stipe 5–10 cm long, with dense setose hairs and narrow scales, especially towards base. Lamina of sterile fronds pinnate or deeply pinnatifid, elliptic in outline, 30–50 cm long, 8–14 cm broad, with dense, dark brown, setose hairs on rachis and costae, scattered below; pinnae 15–25 pairs, entire, blunt at apex, often contiguous or sometimes overlapping slightly; longest pinnae 5–7 cm long, 1.2–2 cm broad in the middle; basal pinnae gradually reduced in length; veins mostly forked twice; pinnae in lower half of frond auriculate; upper pinnae ±adnate. Lamina of fertile fronds pinnate; pinnae 15–20 pairs, linear, 3–6 cm long. Sori continuous, indusiate when young.
Lord Howe Is. Endemic; found on the top of Mt. Gower.
Confined to cloud-forest.
L.H.Is.: near the top of Mt Gower, C.Moore 3 (K); Mt Gower plateau, J.C.Game 69/235 (K); summit of Mt Gower, J.Pickard 3602 (NSW); top of Mt Gower, 1911, W.W.Watts (BRI, NSW); loc. id., J.C.Game 65/1/ s.n. (K); loc. id., C.Moore 15 (K).
Blechnum discolor (G.Forst.) Keys was recorded from Norfolk Is. by J.H.Maiden (Proc. Linn. Soc. New South Wales 28: 732, 1904), and earlier by G.Bentham (Fl. Austral. 7: 735, 1878) (as Lomaria discolor (G.Forst.) Willd.), but R.M.Laing records (Trans. & Proc. New Zealand Inst. 47: 13, 1915) that J.H.Maiden had subsequently come to the opinion that this identification was erroneous.
DoodiaR.Br. Prodr. 151(1810) named after Samuel Doody (1656–1706), an apothecary of London, who was an early worker on cryptogamic plants
Type: D. aspera R.Br.
Terrestrial. Rhizomes short, erect or suberect with persistent stipe bases and brown, or almost black, scales. Fronds all similar or dimorphic, pinnatifid to pinnate, usually hard textured, with sharply toothed margins; veins forked, connected by short, cross veinlets. Sori borne on outer veinlets, not marginal, oblong to somewhat linear, discrete or sometimes coalescing; indusia opening towards midrib.
A genus of c. 12 species found from Sri Lanka, Java and Papua New Guinea to Australia, New Zealand and the Pacific islands. Three species native to Lord Howe Is, with 2 of these also present on Norfolk Is.
G.Bentham, Filices, Doodia, Fl. Austral. 7: 740–742 (1878); B.S.Parris, The Genus Doodia R.Br. (Blechnaceae: Filicales) in New Zealand, New Zealand J. Bot. 10: 585–604 (1972).
1 Lower pinnae adnate to rachis by a broadened base; stipe and rachis with tubercles and scales glabrescent
1. D. aspera
1: Lower pinnae attached to rachis by an unexpanded base or shortly stalked; stipe and rachis pubescent
Rhizome covered with blackish scales. Fronds: stipe and rachis with narrow, blackish, caducous scales leaving harsh tubercles when shed, usually glabrescent; fertile and sterile fronds similar, pinnate, 15–40 cm long, erect, harsh; pinnae, except sometimes the lowest pair, adnate to rachis by a broadened base; longest pinnae 1–7 cm long; terminal lobe 2–4 cm long. Sori in 1 or 2 rows on each side of midrib; indusia usually pushed to one side.
Norfolk Is., Lord Howe Is. According to B.S.Parris, New Zealand J. Bot. 10: 590 (1972), it has been recorded from the Islands, but no material was cited. It was also recorded for Norfolk Island by J.H.Maiden, Proc. Linn. Soc. New South Wales 28: 733 (1904) and by R.M.Laing, Trans. & Proc. New Zealand Inst. 49: 13 (1915). However, the presence of this species on the Islands needs confirmation. It is known from Australia and the North Is. of New Zealand.
mediaR.Br. Prodr. 151(1810)
Doodia caudata var. media (R.Br.) Benth., Fl. Austral. 7: 742 (1878).T: Endeavour River, Queensland, J.Banks & D.Solander; holo: BM. The epithet comes from the apparent mid position of this species in the three described by Robert Brown.
Rhizome densely covered with black scales. Fronds pubescent: stipe and rachis with narrow, dark brown scales, especially towards base, pubescent; fertile and sterile fronds similar (or fertile pinnae narrower), pinnate, 10–50 cm long, harsh, erect or inclined; pinnae in lower 1/3 of frond shortly stalked; pinnae in middle 1/3 of frond partly or completely adnate by an unwidened base to rachis, longest pinnae 1–5 cm long; terminal lobe 1–5 cm long. Sori oblong to elongate, in 1 (sometimes 2) rows on each side of midrib, discrete or coalesced laterally; indusia linear, often obscured.
Norfolk Is., Lord Howe Is. Also known from eastern Australia and New Caledonia.