Australian Tropical Rainforest Plants - Online edition

Syzygium malaccense (L.) Merr. & L.M.Perry


Tree
Click/tap on images to enlarge
Flowers. © CSIRO
Leaves and Flowers. © CSIRO
Fruit, oblique view and cross section. © W. T. Cooper
Fruit [not vouchered]. © G. Sankowsky
Scale bar 10mm. © CSIRO
Habit, flower & bud, anther, fruit. © CSIRO
10th leaf stage. © CSIRO
Cotyledon stage, hypogeal germination. © CSIRO
Family

Merrill, E.D. & Perry, L.M. (1938) Journal of the Arnold Arboretum 19: 215.

Common name

Apple, Malayasian; Satinash, Pink; Pink Satinash; Malay Apple; Apple, Malay; Malayasian Apple

Stem

Bark pale brown. Blaze odour resembling that of dried apples (Pyrus malus).

Leaves

Leaf blades about 11-15 x 4-7 cm, petioles about 0.8-1.5 cm long. Oil dots usually rather sparsely distributed, visible with a lens or just visible to the naked eye. Midrib slightly depressed on the upper surface towards the base. Lateral veins not really forming an intramarginal vein.

Flowers

Inflorescence on branches below or back from the leaves, bracts deciduous, absent at anthesis. Calyx tube (hypanthium) + pedicel about 6-9 mm long, calyx tube (hypanthium) about 4-8 mm diam., calyx lobes dimorphic, inner lobes larger, rounded, about 2-4 mm long. Petals concave, +/- orbicular, about 6-9 mm diam., oil dots readily visible, about 100 or more per petal. Outer staminal filaments about 10-18 mm long, anthers about 1-1.4 x 0.7-1.2 mm, gland comparatively small, terminal, near the back of the anther. Ovules about 30-35 per locule, placentas central, ovules radiating, ascending. Style about 18-25 mm long, generally exceeding the stamens.

Fruit

Fruits globular, attaining about 18-20 x 18-26 mm, calyx lobes persistent, about 2 mm long, pericarp succulent. Seed solitary, about 11-14 x 13-19 mm, testa adhering to the pericarp, but free from the uniformly textured cotyledons. Radicle central.

Seedlings

Cataphylls about 2 or 3. At the tenth leaf stage: leaf blade elliptic, apex acuminate, base cuneate, glabrous; oil dots visible with a lens. Seedlings often multistemmed. Seed germination time 22 to 49 days.

Distribution and Ecology

Occurs in CYP and NEQ. Altitudinal range from sea level to 100 m. Grows in dry rain forest but is more frequently found in gallery forest. Also occurs in Malesia where it is widely cultivated.

Natural History & Notes

A very showy tree that deserves place in tropical horticulture. Flowers can be white to cream to pink or purple. In SE Asia, selected trees are sometimes grown for the edible fruits.

This species may have medicinal properties. (http://www.dittmar.dusnet.de/english/esyzyma.shtm l)

This is a rare species in Australia and has not been used commercially. It is usually a well formed tree and would probably produce a useful structural timber. Wood specific gravity 0.87. Hyland (1983).

Synonyms
Jambosa malaccensis (L.) DC., Prodr. 3: 286(1828). Eugenia malaccensis L., Species plantarum : 470(1753), Type: Tropical Asia.
RFK Code
653
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