Key botanical
characters:
Evergreen
tall trees, 20-25 m tall, crown conical or pyramidal; Branchlets many,
decussate, stout, cylindric, slightly grooved; Wood brick-red, heavy; bark
black or dark-brown, yellow, smooth; latex yellow, sticky. Leaves simple,
opposite, decussate; petioles ca. 2-2.5 cm long, stout; lamina ca. 14-25 x
5-12 cm, elliptic to elliptic-oblong, acute, obtuse or rotundate at base,
acute or shortly acuminate at apex, margins thick, often slightly revolute,
thickly coriaceous, purpurascent and shiny; secondary nerves 40-50 pairs,
subhorizontal, numerous, prominent beneath, interarching with a double
intermarginal nerve. Male flowers rare, 2-9, clustered at apex of branchlet,
ca. 4 cm in diam., showy, pale green or creamy yellow; pedicels ca. 1.5-2 cm
long; bracts several orbicular, concave, scarious; sepals 4, erect, unequal,
coriaceous, orbicular, concave, rotund; petals 4, ovate, fleshy,
yellowish-red inside, greenish-red outside; stamens indefinite, inserted on 4
thick, receptacular lobes below rudimentary pistil; filaments short; anthers
ovate-oblong, recurved, bilocular, dehiscence longitudinal; rudimentary
pistil discoid, fleshy, red, apex conical, as long as stamens. Female flowers
ca. 4-5 cm in diam., solitary or geminate, pseudoterminal; pedicels ca. 1.8-2
cm long, stout, woody; sepals 4, ca. 2cm in diam., decussate, orbicular,
concave, persistant, outer pair shorter than inner; petals 4, ca. 2.5-3 cm in
diam., purple, orbicular, concave, thick, fleshy; stamens many, 1-2 seriate;
anthers ovate-oblong, recurved, bilocular, dehiscence longitudinal; filaments
ca. 4-5 mm long, slender, connate at base; ovary globular, 4-8 locular,
smooth; ovules solitary, ascending; stigmas sessile, punctate, 5-8 lobed,
lobes cuneiform. Berries ca. 7 cm in diam., dark purplish-brown, glossy,
smooth, surrounded by enlarged sepals at base and crowned by hard, flat
stigma, on short peduncles; pericarp thick, spongy, reddish abounding in
yellow latex. Seeds 7-8, ca. 1-2 cm long, oblong, laterally compressed, with
white, thick, with juicy, pleasant smelling aril.
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