A Web Guide to the Eucalypts
- Eucalyptus rigidula
Maiden, Crit. Revis. Eucalyptus 7: 403 (1928).
- TYPE: Western Australia, Comet Vale, J.H. Maiden, Sep 1909 (holo NSW, iso FRI, MEL). Cited as "J.H. Maiden (buds and fruits), September 1909, is the type,... " (from the protologue of E. angusta Maiden).
- Eucalyptus angusta Maiden,
Crit. Revis. Eucalyptus 6: 265 Plate 229 fig. 3 (1922).
- TYPE: Western Australia, Comet Vale, J.H. Maiden, Sep 1909 (holo NSW, iso CANB, MEL).
Habit: Mallee, Height to 7 m high.
Bark: Bark smooth throughout, dull and powdery, white or grey or
brown, shedding in long ribbons. Pith glands absent; Bark glands absent.
Leaves: Intermediate leaves disjunct late, narrow lanceolate to
lanceolate, falcate, dull grey green, petiolate. Adult leaves disjunct,
lanceolate to broad lanceolate, not falcate, acute, basally tapered, glossy,
green or yellow-green, thick, concolorous, 59 cm long, 0.81.8 mm
wide; Petioles terete to narrowly flattened or channelled, Petioles 0.81.6
mm long. Lateral veins obscure, obtuse, moderately spaced. Intramarginal vein
obscure, continuous, 0.51.5 mm from margin.
Inflorescences: Conflorescence simple, axillary; Umbellasters
7-flowered. Peduncles terete, 512 mm long. Pedicels terete or angular,
25 mm long.
Flowers: Buds ovoid or fusiform, not glaucous or pruinose, 810
mm long, 34 mm diam. Calyx calyptrate; shedding early. Calyptra conical, 2
times as long as hypanthium or 3 times as long as hypanthium, as wide as
hypanthium or wider than hypanthium; smooth. Hypanthium smooth. Flowers cream.
Fruits: Fruits hemispherical or ovoid, pedicellate, 34 locular,
59 mm long, 57 mm diam. Calyptra scar flat, 0.20.5 mm wide.
Stemonophore flat, 0.51 mm wide. Disc depressed to flat, 12 mm wide.
Valves enclosed, vertically raised. Seeds regular, ovoid, smooth, semi-glossy,
grey-brown. Hilum ventral. Chaff dimorphic, linear and cuboid, chaff same colour