P. S. Green Royal Botanic Gardens, Kew, Richmond, Surrey, tw9 3AB, England

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Scattered throughout the populations of tree ferns

N.Is.: Mt Pitt Reserve, M.Lazarides 8086 (CANB, K); SE slopes of Mt Pitt, R.D.Hoogland 6591 (CANB); between Palm Glen and Red Rd, R.J.Chinnock 5964 (AD, K); s. loc., Nov. 1902, J.H.Maiden & J.L.Boorman (BM, K, NSW).

truncata(R.Br.) Desv.
Mém. Soc. Linn. Paris 6: 192(1827)

Psilotum truncatum R.Br., Prodr. 164 (1810).T: Tasmania and Port Jackson, Australia, 1802, R.Brown; syn: BM; isosyn: K. The epithet alludes to the truncate apex of the leaves.

[Tmesipteris tannensis auct. non (Spreng.) Bernh.: G.Bentham, Fl. Austral. 7: 681 (1878), p.p.; W.R.B.Oliver, Trans. & Proc. New Zealand Inst. 49: 117 (1917)]

Illustrations: D.L.Jones & S.C.Clemesha, Austral. Ferns & Fern Allies 2nd edn, 32, fig. 15b (1981); S.B.Andrews, Ferns Queensland fig. 31.1A (1990); P.G.Wilson in G.J.Harden, Fl. New South Wales 1: 4 (1990).

Pendulous epiphyte on trunks of tree ferns. Branches 10–30 cm long, of limited growth. Leaf-like appendages oblong, only very slightly sigmoid, 10–20 mm long, 3–5 mm broad, subtruncate with prominent apiculum 1–2 mm long. Synangia somewhat elongate, ovoid-conoid, 5.5–6 mm long, 1.25–1.5 mm broad, ±pointed.

Lord Howe Is. Also known from similar habitats in southern Qld and in N.S.W.

Common as an epiphyte on tree fern trunks in the mountains.

L.H.Is.: top of Mt Gower, M.M.J. van Balgooy 1119 (CANB); loc. id., P.S.Green 1593 (A, K); side of Mt Lidgbird, C.Moore 33 (K, MEL).


P.S.GreenRoyal Botanic Gardens, Kew, Richmond, Surrey, TW9 3AB, England

Herbaceous, terrestrial or epiphytic herbs. Stems erect, scrambling or pendulous, simple or dichotomously branched. Leaves numerous, small, simple, 1-veined. Sporophylls similar to other leaves or modified and forming compact, terminal spikes ('cones'). Sporangia axillary, 1-locular, homosporous.

A family of 4 living genera and c. 250 species, pantropical with many southern temperate species. One native genus on each of the Islands.

In addition to Lycopodium, the type genus, 2 other genera, Huperzia and Lycopodiella, previously treated as part of Lycopodium, are now generally recognised as distinct. The fourth is Phylloglossum, a monotypic genus from Australia and New Zealand.

G.Bentham, Lycopodiaceae, Fl. Austral. 7: 670–682 (1878); D.L.Jones & S.C.Clemesha, Lycopodiaceae, Austral. Ferns & Fern Allies 2nd edn, 20–27 (1981); F.M.Tryon & A.F.Tryon, Lycopodiaceae, Ferns & Allied Pl. 796–812 (1982); B.Øllgaard, A revised classification of the Lycopodiaceae s. lat., Opera Bot. 92: 153–178 (1987); D.L.Jones, Lycopodiaceae, Encycl. Ferns 364–368 (1987); B.Øllgaard, Index of the Lycopodiaceae, Biol. Skr. 34: 1–135 (1989); P.J.Brownsey & J.C.Smith-Dodsworth, Lycopodiaceae, New Zealand Ferns Allied Pl. 19–24 (1989).


Roots in a basal tuft; branches clustered together; branch dichotomies equal


Roots occurring at nodes along stem; branch dichotomies unequal



J. Bot. (Schrader) 1800(2): 126(1801)
named after Johann Peter Huperz (?–1816), a German botanist who wrote on ferns

Type: H. selago (L.) Schrank & Mart.

Epiphytic or terrestrial. Stems all similar, ascending or pendulous; branches bifurcating equally and of ±equal length; roots in a single basal tuft. Sporophylls resembling sterile leaves or reduced, persistent. Strobili ('cones') made up of sporangia in the axils of unmodified or reduced leaves, erect, merging into vegetative shoots or distinct. Sporangia reniform, shortly pedunculate. Prothallus subterranean, saprophytic.

A cosmopolitan genus of 200 or more species; 1 species native to Lord Howe Is.

G.Bentham, Lycopodiaceae, Lycopodium, Fl. Austral. 7: 674 (1878).

varia(R.Br.) Trev.
Atti Soc. Ital. Sci. Nat. 17: 247(1874)

Lycopodium varium R.Br., Prodr. 165 (1810); Lycopodium selago var. varium (R.Br.) F.Muell., Fragm. 10: 118 (1877); Urostigma varius (R.Br.) Herter ex Nessel, Bärlappgewächse 192 (1939).T: Tasmania, 1804, R.Brown; holo: BM. The epithet is the Latin for diverse, presumably alluding to the leaves either spreading or overlapping.

[Lycopodium myrtifolium auct. non G.Forst.: G.Bentham, Fl. Austral. 7: 674 (1876) et auct. mult.]

[Lycopodium nutans auct. non Brack.: J.H.Maiden, Proc. Linn. Soc. New South Wales 24: 383 (1899)]

Illustrations: D.L.Jones & S.C.Clemesha, Austral. Ferns & Fern Allies 2nd edn, 23, fig. 6b (1981), as L. myrtifolium; B.Duncan & G.Isaac, Ferns & Allied Pl. Victoria, Tasmania & S. Australia 41 (1986), as L. varium; S.B.Andrews, Ferns Queensland 233, fig. 20.4A (1990), as L. myrtifolium.

Terrestrial, perennial, ±erect, up to 50 cm high, usually less; ±tufted branches relatively few. Leaves crowded, narrowly lanceolate-linear, 10–15 mm long, 2–3 mm broad, ±blunt. Cone slender, (3–) 6–15 cm long, 3–5 mm broad; sporophylls imbricate in 4 rows, variable, some ±intermediate with vegetative leaves, ovate, 2–5 mm long, entire, cuspidate.

Lord Howe Is. Known from the upper slopes of Mt Gower. Also known from Australia (southern Qld, N.S.W., Vic. and Tas.) and New Zealand.

Classified as 'rare, very uncommon' by J.Pickard (Biol. Conservation 27: 139, 1983).

L.H.Is.: N ridge of Mt Gower, P.S.Green 1649 (K); summit of Mt Gower, J.P.Fullagar (K, MEL).


Preslia 36: 22(1964)
the name is derived from that of the related Lycopodium plus the diminutive suffix -ella

Type: L. inundatum (L.) Holub.

Terrestrial ferns, of diverse habit. Rhizome indeterminate, rooting. Stems erect, simple or branched. Sporophylls and vegetative leaves dissimilar; sporophylls ephemeral, usually subpeltate. Cones terminal on simple branches or apparently lateral, pendulous or erect. Prothallus green, hemisaprophytic.

A genus of c. 40 species, mostly from the Americas; 1 species native to Norfolk Is.

G.Bentham, Lycopodiaceae, Lycopodium, Fl. Austral. 7: 676 (1878).

cernua(L.) Pic.Serm.
Webbia 23: 166(1968)

Lycopodium cernuum L., Sp. Pl. 2: 1103 (1753).T: locality unknown, LINN 1257.15; holo: LINN; IDC microfiche 177/2.735/15. Named from the Latin cernuus (nodding), alluding to the inclination of the cones.

Illustrations: D.L.Jones, Encycl. Ferns 365, 366 (1987); P.J.Brownsey & J.C.Smith-Dodsworth, New Zealand Ferns & Allied Pl. 20, fig. 20, t. 2B (1989); S.B.Andrews, Ferns Queensland 227, fig. 20.1B (1990); all as Lycopodium cernuum.

Rhizome long-creeping; stems to 1 m high, much branched in upper part. Leaves crowded, linear-subulate, 3–5 mm long. Cones solitary on nodding tips of branchlets, oblong, 0.5–1 (–1.5) cm long, obtuse; sporophylls closely overlapping, ovate, denticulate, cuspidate.

Club Moss.

Norfolk Is. Possibly a relatively recent arrival. This species has a pantropical distribution.

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