特徵描述
Calophyllum 胡桐屬
作者
ROBSON, NORMAN K. B.
型態特徵
Trees or rarely shrubs, glabrous or with ferrugineous indumentum, with translucent glandular canals and clear (colorless or golden) to opaque (white) exudate. Leaves opposite, entire, lateral nerves numerous, close, parallel, unbranched, alternating with the canals. Inflorescence axillary or terminal, racemose or paniculate. Flowers bisexual or polygamous. Sepals 4, imbricate, inner pair often ± petaloid. Petals 4-12 (in 1-3 whorls) or sometimes absent, white, imbricate or decussate, deciduous. Stamens in 4 obscure antepetalous fascicles or apparently not fascicled, deciduous, very numerous, filaments slender, free or united at base; anthers basifixed, dehiscing longitudinally, often apiculate but without gland on connective; staminodes similar to stamens; sterile fascicles absent. Ovary 1-locular with 1 basal ovule; style 1, slender; stigma excpanded, often peltate. Fruit a drupe, usually green with paler or darker green spots, with crustose endocarp; seed large, ovoid or globose, not arillate; embryo slender, straight, with distinct cotyledons.