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Hibbertia fumana Sieber ex Toelken APNI*
Description: Decumbent shrublet, prostrate to weakly ascending to 20 cm high, with many branches from the base, moderately- to much-branched; branches wiry, shortly fascicled pubescent.
Leaves with intrapetiolar axillary tuft of hairs to 0.7 mm long; petiole 0.2–0.45 mm long; lamina narrow-oblong, rarely linear-elliptic, (1.9–) 2.1–6.5 mm long, 0.5–1.2 mm wide, obtuse, with terminal tuft of hairs on a somewhat recurved apex of the central vein, more or less abruptly constricted into petiole, above ± flat and puberulous to glabrescent, below with broadened central vein recessed below the level of revolute margins and protruding into apex, pubescent to puberulous.
Flowers single, terminal, commonly on main branches; petals obovate, 4–5.2 mm long, broadly bilobed. Stamens 5 or 6 (7), subequal, clustered on one side of the ovaries; ovaries each with 4 ovules.
Fruit puberulous with simple and multiangular hairs. Seeds oblong-obovoid to almost obloid, 1.6–2.0 mm long, 1.4–1.5 mm wide, smooth, light brown; aril with fleshy base surmounted by one-sided membranous cup covering c. one quarter of one side of seed.
Distribution and occurrence: Critically Endangered. When described in 2012 known only from several collections made prior to 1824 and presumed extinct. Known from a single extant population in western Sydney.
NSW subdivisions: CC
Threatened species: NSW BCA: Critically Endangered
Text by Louisa Murray
Taxon concept: Duretto, M.F., Orme, A.E., Rodd, Jane, Stables, Mark & Toelken H. (2017) Hibbertia fumana (Dilleniaceae), a species presumed to be extinct rediscovered in the Sydney region, Australia. Telopea Vol. 20: 143-146
APNI* Provides a link to the Australian Plant Name Index (hosted by the Australian National Botanic Gardens) for comprehensive bibliographic data
***The AVH map option provides a detailed interactive Australia wide distribution map drawn from collections held by all major Australian herbaria participating in the Australian Virtual Herbarium project.