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Plants of Taiwan

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    台灣植物誌 第二版  Flora of Taiwan, 2nd edition    Vol. 3

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    台灣植物誌第二版  Flora of Taiwan, 2nd edition  3: 754

     85. BOMBACACEAE 木棉科
    LI, HUI-LIN

    Trees with alternate, stipulate, digitately compound, deciduous leaves. Inflorescence axillary or terminal. Flowers regular, perfect, medium or large. Calyx cup-shaped, truncate or irregularly 3-5-lobed. Petals 5, imbricate. Stamens pentadelphous, opposite the petals, divided above into few or numerous filaments. Ovary 5-celled, superior, free; stigmas 5 or 1 and obscurely 5-lobed; ovules many in each cell. Fruit a loculicidally 5-valved capsule. Seeds with woolly or silky hairs; endosperm scant or absent.
    Genera about 20, widely distributed in the tropical regions. Two genera introduced into Taiwan, one of which is naturalized.

    1. BOMBAX L. 木棉屬

    Large trees with digitate, deciduous leaves. Peduncles axillary or subterminal, solitary or clustered, 1-flowered. Flowers large, red, appearing before the leaves; calyx leathery, cup-shaped, truncate or irregularly lobed; petals obovate; stamens pentadelphous, the bundles opposite the petals, divided above into numrous filaments; anthers reniform, 1-celled, the style clavate; stigmas 5; ovules many in each cell. Capsule loculicidally 5-valved, the valves leathery, woolly within. Seeds woolly.
    Species about 50, chiefly in tropical America. The following Indo-Malayan species is naturized in Taiwan.

    1.Bombax malabarica DC., Prodr. 1: 479. 1824; Li in Fl. Taiwan 3: 729. f. 789. 1977. 木棉 Pl.378
    Bombax ceiba L., Sp. Pl. 511. 1753.
    A large tree, 25 m high or more, the trunk with few or many, very large, pyramidal spines. Leaves deciduous; leaflets 5-7, elliptic to elliptic-lanceolate, 10-20 cm long, acuminate, glabrous; petioles up to 22cm long. Flowers large, red, 8-10 cm long, appearing before the leaves, fascicled at or near the ends of the branchlets; petals more or less stellate-pubescent. Capsule about 15 cm long, the valves silky within. Seeds numerous, obovate.
    India to Malaya and the Philippines. Naturized in Taiwan, generally cultivated as ornamental trees.
    TAINAN: Chiali, H. Morimoto 372. PINGTUNG: Hsiaoliuchiu, Hosokawa 1714; Chaochou, Sasaki s. n. Mar 1912; Ssuchungshi, Hsu & Wang s. n. 1971.