A Web Guide to the Eucalypts
- Eucalyptus roycei
S.G.M. Carr D.J. Carr & A.S. George, Proc. Roy. Soc. Victoria n.s. 83: 159 figs. 2-8 (1970).
- TYPE: Western Australia, near Hamelin Pool, E.M. Scrymgeour and S.G.M. Carr 284, 2 Mar 1966 (holo PERTH, iso BRI, CANB, MEL, NSW, PERTH). Cited as "E.M. Scrymgeour and S.G.M. Carr 284. PERTH."
Habit: Tree or Mallee.
Bark: Bark smooth throughout, grey or grey-brown or yellow, shedding
in short ribbons or shedding in small polygonal flakes. Pith glands present;
Bark glands present. Cotyledons reniform.
Leaves: Intermediate leaves disjunct early, elliptic, straight,
entire, dull grey green, sessile. Adult leaves opposite or disjunct, lanceolate
or broad lanceolate or ovate, falcate or not falcate, acute or acuminate,
basally tapered, dull, green, coriaceous, concolorous. Lateral veins prominent,
Inflorescences: Conflorescence simple, axillary; Umbellasters
3-flowered. Peduncles terete or quadrangular.
Flowers: Buds ovoid or cylindrical, not glaucous or pruinose. Calyx
reduced to 4 teeth on hypanthium. Calyptra hemispherical or conical, 1 times as
long as hypanthium, wider than hypanthium; smooth. Hypanthium striate, or
ribbed. Flowers cream, or yellow.
Fruits: Fruits cylindrical, pedicellate. Disc depressed. Valves