Kostermanthus heteropetalus (scort. ex King) Prance

Species

Angiosperms > Malpighiales > Chrysobalanaceae > Kostermanthus

Characteristics

Tree to 35 m tall, older trees buttressed to 1 m up trunk; young branches glabrous, lenticellate. Stipules 6-7 mm long, partly intrapetiolar, carinate, ovate, foliaceous, acute to acuminate, persistent to subpersistent. Leaves coriaceous, usually elliptic-subovate to rarely lanceolate, 5-20 by 2.5-6 cm, bluntly acuminate at apex, cuneate to rounded at base, glabrous on both surfaces, minutely papillose on venation of both surfaces giving a bead-like appearance; midrib prominulous above, prominent beneath; primary veins 6-10 pairs, arcuate, slender, prominent beneath; petioles 6-12 mm long, sometimes lightly alate from decurrent leaf margins, slightly flattened above, eglandular. Inflorescences little-branched, to 10 cm long, the rachis and branches lightly tomentellous; bracts and bracteoles ovate, acute, to 3 mm long, caducous. Receptacle broadly campanulate, 2-3 mm long, tomentose on both surfaces; calyx lobes fleshy, unequal, acute, to 7 mm long, pilose on both surfaces, reflexed in open flowers. Petals white tinged pink, fleshy, ellliptic, concave, largest up to 15 mm long, tomentellous on exterior, enveloping staminal ligule, the others much smaller to 6 mm long. Stamens 25-30 united into a unilateral ligule for ⅔ length, to 12 mm long, glabrous; anthers pubescent. Ovary densely pilose. Style densely appressed pilose, stigma truncate. Fruit ovoid, unilocular 4 by 3 cm; epicarp glabrous, crus-taceous; endocarp hard, thick. Cotyledons slightly ruminate, 1.5 by 3 cm.
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A tree. It grows 35 m tall. The trunk is 2 m across. It has small, low buttresses. The bark has small cracks. The leaves are narrowly oval and leathery. They are 5-20 cm long by 3-6 cm wide. They are wedge shaped or rounded at the base. They taper to a blunt tip. The leaves are smooth but with small hairs on the veins. The flowering stalks have few branches and are 10 cm long. The flowers are bell shaped at the base and the lobes are fleshy and curve back. The petals are white with pink tinges. The petals are unequal. The fruit are oval and 4 cm long by 3 cm wide. They have a thick hard outer shell. The seeds are 1.5 cm long by 3 cm wide.
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Growth form tree
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Foliage retention evergreen
Sexuality hermaphrodite
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Mature width (meter) 2.0
Mature height (meter) 35.0
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Environment

It is a tropical plant. It grows in forests on sandy clay soils up to 500 m above sea level.
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From sea level up to 500 m altitude.
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Hardiness (USDA) 9-12

Usage

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Edible fruits
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Cultivation

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Distribution

Kostermanthus heteropetalus world distribution map, present in Brunei Darussalam, Indonesia, Iceland, Malaysia, and Philippines

Identifiers

LSID urn:lsid:ipni.org:names:168038-1
WFO ID wfo-0000813786
COL ID 3RDN2
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Parinari heteropetala Kostermanthus heteropetalus Parinari myriandra Parinari kunsteri Acioa heteropetala Acioa percoriacea