Hibbertia pustulata Toelken APNI*
Description: Small decumbent shrub to 0.15 m high; with sparse, wiry branches, with long decurrent leaf bases, brown, glabrous.
Leaves linear, linear-elliptic to linear-lanceolate, (4.3–) 6.0–7.5 (–8.6) × (0.6–) 0.7–0.8 (–1.0) mm, acute with short tuft of simple hairs, with paler tubercle usually retained, with cuneate base, above flat and glabrous, below with central vein bulging over revolute margins and no tubercles visible between them, puberulous when young and soon wearing off, but retaining scattered paler hair tubercles mainly along the margins and towards the apex. Leaves without tufts of hairs in the leaf axils; petiole 0.2–0.6 mm long, dorsiventrally compressed.
Flowers single, terminal, sessile on all branches; flower stalk absent; buds narrowly ellipsoidal or rarely ovoid; bract triangular, 0.7–1.1 × 0.6–0.75 mm, acute to pointed, scale-like, without central ridge, glabrous or often with more or less dense, very short cilia; often subtended by 2 additional bracts or grading into reduced leaves, fleshy and narrowly oblong. Calyx scarcely accrescent; outer calyx lobes narrowly elliptic-lanceolate, (5.5–) 5.9–6.3 × 2.5–2.6 mm, acute to pointed, with scarcely raised central ridge distally, glabrous; inner calyx lobes lanceolate, rarely ovate, (5.6–) 6.0–6.5 × 3.2–3.4 mm, subequally as long as outer ones, without central ridge, glabrous. Petals obovate-spathulate, 7.6–9.3 mm long, distinctly emarginate. Stamens 4; filaments 1.0–1.2 mm long, free, basally connate; anthers narrowly obloid, 2.3–2.5 mm long, abruptly constricted above and below. Pistils 2; ovaries broadly obovoid but distinctly laterally compressed, with 4–6 ovules, glabrous, with styles attached to lower dorso-lateral surface and curved up on both sides of the anthers to place the erect stigmas above the apex of the anthers.
Fruits glabrous. Seeds not seen.
Flowering: August – October
Distribution and occurrence: Occurs in the Blue Mountains and Wollemi area, in the Central Tablelands of NSW.
Grows in montane heath of the upper Blue Mountains. Often associated with periodically swampy ground such as Buttongrass sedgelands and hanging swamps. Also present in heath-woodland boundaries.
NSW subdivisions: CT
Text by A.E. Orme, Oct 2014 [edit Sep 2021]
Taxon concept: H.R. Toelken & R.T. Miller (2011) J. Adelaide Bot. Gard. 25
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