Boehmeria virgata subsp. virgata var. austroqueenslandica
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publication ID |
https://doi.org/10.3767/000651913X674116 |
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persistent identifier |
https://treatment.plazi.org/id/03D987B7-FF82-5159-FFBA-5A48D871FE52 |
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treatment provided by |
Felipe |
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scientific name |
Boehmeria virgata subsp. virgata var. austroqueenslandica |
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20. Marginal teeth 20–30 in number; lamina length (2.5–)3– 3.5 × width; fruiting perianth only slightly laterally flattened with marginal rim. — Eastern Australia......................... d. subsp. virgata var. austroqueenslandica View in CoL i. subsp. virgata View in CoL — Fig. 21–23a–c View Fig View Fig View Fig ; Map 22 View Map 22 , 23 View Map 23
Scandent or erect shrub or slender tree; ultimate stems glabrous or with fine adpressed or coarser spreading hairs. Stipules 7–10 by 1–2 (rarely up to 25 by 4) mm, rather thick-textured. Leaves slightly dimorphic in size with ‘larger’ lamina up to 2 × length of ‘smaller’ ones and relatively narrower, elliptic or elliptic-ovate, very variable in size and relative proportions, 5–22(–30) by 3–12(–20) cm; margin indistinctly or sharply fine-serrate to bluntly crenate-serrate or large-crenate (sometimes irregularly double-toothed), teeth (20–)25–45 either side, shallow but often relatively broad for size of lamina, (0.2–)0.5–1 by 2–4.5 (rarely up to 2 by 7) mm; leaf apex attenuate to indistinctly short-acuminate and usually toothed ± to apex; base not or slightly asymmetrical, broadly cuneate to rounded, truncate or subcordate becoming abruptly cuneate at extreme base; basal and upper lateral veins very variable, similar or dissimilar on the two sides of lamina, upper lateral veins on one side 1–5(–7) but often hardly distinct from coarser tertiary veins, on other side usually one fewer, often inconspicuous adaxially; texture thin- or thick-chartaceous, both surfaces hairy or adaxial surface glabrous; petiole variable but usually long relative to lamina (0.15–)0.3–0.5(–0.75) × lamina length, hairy like lower leaf surface. ‘Smaller’ leaves of similar form or with apex broad-acute. Inflorescence-bearing axes glabrous or with hairs sparse, fine, spreading or adpressed; male axes pendulous or the shorter ones erect or with drooping apex, (5–) 10–20 cm long (unbranched or) with short lateral branches usually throughout length; female (or mainly female) inflorescence-bearing axes pendulous, very long, (6–) 20–70 cm, variably unbranched to branched, or with short male branches near base; bracts robust, 1–2 mm long; flower-clusters usually well-spaced along axis (rarely almost contiguous), male clusters 3–4 mm diam, flowers up to c. 15, very crowded; female clusters 1.5–3 mm diam, flowers up to c. 30(–more than 50) densely crowded; bracteoles ovate or rhombic, in male clusters very inconspicuous, in female ones up to 0.4 mm long. Male flowers with dorsal appendages of tepals usually broad flap-like, sometimes reduced to wartlike thickening, almost glabrous or with coarse hairs. Female flowers up to 0.8 by 0.2 mm, stigma variable often even on one plant ranging from short and hooked, 0.4–0.6 mm long, to longer, straight and 1.5–2 mm long. Fruiting perianth 1.5–2 by 0.6 mm, quite variable in shape, ranging from obtriangulartruncate in outline, and slightly constricted into minute beak at extreme apex, to spindle-shaped or ellipsoid-ovoid with distinct beak; always markedly flattened into usually broad wing around relatively small achene, glabrous or with hairs fine often minute, straight, spreading. Achene minute, up to 0.6 by 0.3 mm, elongate or almost spherical.
Distribution ― Malaysia (Selangor), Philippines (Luzon, Bohol, Mindanao), Indonesia (a few records to the west of Wallace’s line: Sumatera, Jawa and Bali; east of this line Nusa Tenggara [Lesser Sunda Islands], Sulawesi, Maluku [ Moluccas], Papua), Papua New Guinea, Australia, Pacific incl. Solomon Islands, Vanuatu, Fiji, Tonga Islands, Samoan Islands, Society Islands, Marquesas Islands, Austral Islands).
Habitat & Ecology ― Very varied: dense or open primary or secondary often wet montane forest and forest edges, clearings, dry rocky forest, cliffs and rocky riversides; (30–) 300–1400 m altitude.
Conservation status ― Least Concern (LC). Widespread, in a wide range of habitats and presumed often abundant. Over 400 collections, many recent, seen from much of its distribution. Formal assessment is given separately only for the abundant var. virgata and the well-circumscribed var. austroqueenslandica .
Note ― One widespread and three regional varieties are recognised, two sympatric with the typical (widespread) variety. For a discussion of their relationship see Notes 2 and 4 under the species as a whole and for comparisons with other species see further under each variety.
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