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Corymbia jacobsiana

Corymbia jacobsiana (Blakely) K.D. Hill & L.A.S. Johnson, Telopea 6: 225 (1995).
Eucalyptus jacobsiana Blakely, Key Eucalypts 92 (1934).
TYPE: Northern Territory, 10 miles [16 km] W. of Pine Creek, M.R. Jacobs 90, July 1933 (holo NSW, iso AD, BRI, CANB, K, MEL, PERTH).


Habit: Tree, Height to 15 m high.
Bark: Bark persistent throughout, tessellated and stringy, yellow-brown to grey-brown. Pith glands present; Bark glands present. Cotyledons suborbicular.
Leaves: Juvenile leaves disjunct from node 3–5, linear, hispid with simple hairs and bristle glands, petiolate. Intermediate leaves disjunct early, lanceolate to elliptic, straight, entire, dull green, petiolate. Adult leaves disjunct, narrow lanceolate or lanceolate, not falcate, acute or acuminate, basally tapered, glossy, green, thin, discolorous, 11 cm long, 17 mm wide; Petioles narrowly flattened or channelled, Petioles 5–12 mm long. Lateral veins obscure, obtuse, closely spaced. Intramarginal vein distinct, continuous.
Inflorescences: Conflorescence compound, terminal; Umbellasters 3-flowered to 7-flowered, regular. Peduncles terete, 5–10 mm long. Pedicels terete, 3–5 mm long.
Flowers: Buds obovoid to clavate, not glaucous or pruinose, 1–2 mm long, 1–2 mm diam. Calyx calyptrate; persisting to anthesis. Calyptra patelliform, narrower than hypanthium; smooth. Hypanthium smooth. Flowers white, or cream.
Fruits: Fruits ovoid to urceolate, pedicellate, 3 locular, 7–10 mm long, 5–8 mm diam. Calyptra scar flat, 0.2–0.5 mm wide. Disc depressed. Valves enclosed. Seeds regular and flattened, patelliform, shallowly reticulate, dull to semi-glossy, red or red-brown. Hilum terminal. Chaff linear, chaff same colour as seed.

Distribution: N.T.

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