Part 7. JUNCACEAE 2: Juncus - Species Plantarum Programme

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SPECIES PLANTARUM — FLORA OF THE WORLD (2002)
apex, 0.4–1.0 mm wide; apex acute; auricles absent. Lower bract filiform, 0.3–1.5 cm long,
shorter than or rarely longer than inflorescence; capitulum bracts scarious, to c. 2 mm long,
scabrid on midrib. Inflorescence umbelloid to rarely anthelate, of 1–10 (–20) heads; heads
2–8-flowered, c. 4–5 mm wide. Tepals unequal, ±narrowly ovate; outer tepals (1.0–) 1.2–1.5 mm
long, acute to broadly-acute, mucronate, without hyaline margins; inner tepals 1.3–1.8 × 1.0 mm,
rounded-obtuse, with broad whitish margins. Stamens 6, rarely 3 or 4; anthers (0.4–) 0.6–0.8 mm
long; filaments 0.4–0.7 mm long; style 0.2–0.5 mm long; stigmas 0.3–0.8 mm long, pale yellow.
Capsule ellipsoid to ovoid, subobtuse, shortly mucronate, dark golden brown to red-brown near
apex, 1.5–2.0 mm long, distinctly longer than perianth. Seeds broadly ovoid, 0.4–0.6 mm long,
0.2–0.3 mm wide, pale castaneous, faintly reticulate; appendages absent. Fig. 51.
Endemic in Western Australia. 50: WAU. In damp places. Map 195.
50. WESTERN AUSTRALIA: [without locality], J.Drummond 103 (W); Nornalup village, K.L.Wilson 9038 &
K.Frank (CHR, K, NSW, PERTH); Albany, Sep 1902, C.Andrews s.n., (NSW50048); Bluff Knoll, 4 May
1975, G.J.Keighery UWA1975 (NSW, UWA).
The number of stamens is usually 6, but occasionally varies from 3 to 6 on the same plant.
A few plants appear intermediate between this and J. planifolius, which may suggest
hybridisation. Outer tepals are always narrower and less obtuse than the inner ones, which
have broad whitish margins.
18. Juncus antarcticus Hook.f., Fl. Antarct. 1: 79, tab. 46 (1844).
T: Campbell’s Island, 1200 ft, J.D.Hooker 1623; lecto: K, fide E.Edgar, in L.B.Moore & E.Edgar, Fl. New
Zealand 2: 69 (1970); iso: BM, MEL s.n., NSW s.n., UPS.
Juncus pauciflorus Kirk, Trans. & Proc. New Zealand Inst. 9: 551 (1877), nom. illeg., non R.Br. (1810);
Juncus brevifolius Kirk, Trans. & Proc. New Zealand Inst. 14: 384 (1882), nom. illeg., non R.Br. (1810).
T: New Zealand, Castle Hill Basin, Broken River, T.Kirk; holo: WELT11170; iso: K [as T.Kirk 630].
Illustration: J.D.Hooker, Fl. Antarct. 2(1): pl. 46 (1844).
Perennials, 1–5 (–12) cm tall, dwarf, loosely caespitose, turf-forming; rhizomes thin, c. 1 mm
in diam., vertical and ascending, branched or many-headed; stolons ±absent. Leaves basal
and sub-basal, ±flat to canaliculate, distally canaliculate to subinvolute, almost terete near
apex, to 2–3 cm long, c. 0.5–0.9 mm wide near base; margins ±smooth and narrowly hyaline;
apex ±obtuse to subobtuse, rarely minutely mucronate; sheaths loose, open, c. 4–8 mm long,
with margins distinct, membranous; auricles absent. Bracts ±ovate, acuminate, pale
castaneous-brown to brownish scarious, 2–6 mm long, shorter than or equalling
inflorescence. Inflorescence terminal, c. 1 cm long, of a 2–10-flowered head; flowers on
pedicels to c. 1.2 mm long. Tepals ±equal, 2.5–3.5 mm long, usually dark castaneous-brown,
with a paler brownish-membranous border or unbordered, acute to acuminate; outer tepals
±lanceolate, carinate, 3-veined; inner tepals ovate-lanceolate. Stamens 3, rarely to 6; anthers
0.5–0.7 mm long; filaments 1.0–1.2 mm long; style c. 0.2 mm long; stigmas c. 0.6–0.8 mm
long. Capsule narrow-ellipsoid, ±trilocular, subtrigonous, subabruptly narrowing into a short
mucro, c. 2.8–3.1 mm long, golden brown to very dark red-brown, usually darker near apex,
shorter than or equalling perianth. Seeds broadly ovoid, pale brown, 0.4–0.6 × 0.35 mm,
distinctly transversely reticulate; appendages absent. Fig. 51.
In Australia (Tasmania, Victoria and New South Wales), and New Zealand (North, South,
Stewart and subantarctic Islands). 50: NSW, TAS, VIC. 51: ATP, NZN, NZS. Boggy ground,
mostly at altitudes above 500 m but down to sea-level in southern New Zealand and
associated islands. Map 196.
50. NEW SOUTH WALES: Rawsons Pass, Kosciusko National Park, 19 Mar 1974, R.Coveny 5376, (CHR, K,
L, LE, MEL, NSW, RSA); base of Mt Piper, near Smiggins – Guthega road, Kosciusko National Park, 23 Jan
1976, J.Thompson 2438B part, (CANB, CHR, K, L, MEL, NSW,). TASMANIA: Pelion Gap, Cradle Mtn,
Lake St Clair N.P., 26 Mar 1992, K.L.Wilson 8366, (CHR, HO, NSW). VICTORIA: Watchbed Ck, Bogong
High Plains, 27 Jan 1966, A.C.Beauglehole 15642 (NSW). 51. NORTH IS.: Wellington, Tararua State
Forest Park, Tararua Range, NW of Powell Hut, Mt Holdsworth area, 1320 m, W.R.Baker, E.Vitek & al. 38-1 (W).
SOUTH IS.: South Is., Canterbury, Thomas River, T.Kirk 1043 (WELT11143); Table Hill, Stewart Island,
R.Melville 6291 & E.F.Melville (K, NSW). ANTIPODEAN IS.: Auckland Island, Carnley Harbour, T.Kirk
1212 (K).