特徵描述
作者
LI, Hui-Lin and YANG, T. Y. Aleck
型態特徵
Trees or shrubs, usually with latex. Branchlets and young growth often ferrugineous-tomentose. Leaves spirally arranged or alternate, sometimes clustered at apex of branchlets; margin entire, petiolate or subsessile; stipules early deciduous or absent. Flowers bisexual or unisexual usually in axillary clusters, rarely solitary; cluster pedunculate or in raceme-like inflorescence, bracteolate. Calyx 1 whorl of usually 4–6 sepals, imbricate, or 2 whorls each with 2–4 sepals, valvate, persistent. Corolla lobes 1 or 2 times as many as sepals, usually entire. Stamens as many as and opposite corolla lobes to many and in 2 or 3 whorls; filaments usually short, inserted in throat of corolla tube; staminodes scaly to petal-like, alternate with stamens, or absent. Ovary superior, 2–8 locular, placentation axile; ovules 1 per cell, anatropous; style 1, often apically lobed. Fruits indehiscent, berries or drupes, 1–8-seeded. Seeds ellipsoid, often compressed; seed coat hard, shiny, rich in tannin; seed scar lateral and linear to oblong or basal, rounded; endosperm usually oily; embryo straight.
屬
A pantropical family of about 107 genera and over 1,000 species; only 2 genera and 3 species in Taiwan.
參考文獻
Palaquium 膞木屬
作者
LI, Hui-Lin and YANG, T. Y. Aleck
型態特徵
Trees, usually very lactiferous. Branchlets with terminal scaly buds. Leaves often clustered, coriaceous; stipulate. Flowers axillary, fascicled or solitary, pedicellate, white, fragrant; sepals (4–)6, in 2 whorls; corolla 4–6-lobed, imbricate or twisted; stamens (8–)12–18(–36), in 2 or 3 whorls, anthers ovate, staminodes absent; ovary villous, 6(–11)-celled, style subulate, ovules pendulous. Fruit a berry, fleshy, globose, 1–4-seeded. Seeds with scar covering half of surface, without endosperm.
