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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: 901

     97. LECYTHIDACEAE 玉蕊科
    LI, HUI-LIN and LO, HANN-CHUNG

    Inermous trees or erect shrubs, without milky latex. Leaves simple, spirally arranged, strongly approximated towards spices of branches, occasionally partly (sub)opposite, pinnately nerved, without gland-dots; stipules none, or minute, caducous. Flowers terminal or axillary, solitary, clustered, in racemes or panicles, bisexual, actinomorphic or zygomorphic; bracteoles or bracts 2 or more; perianth perigynous or epigynous, on mostly flat disk; calyx adnate to ovary, calyx-tube produced above ovary or not, limb 4-6-lobed, or closed before anthesis, afterwards 2-4-cleft, valvate or subimbricate; petals mostly 4-6, rarely absent, imbricate, free or shortly connate, often basally cohering with base of staminal tube; stamens many, in several rows, mostly basally united into short tube; rarely free, inserted on disk or partly on disk-lobe, those of inner row(s) small, anantherous, outer ones staminodial or not; anthers basifixed or dorsifixed, longitudinally dehiscent, rarely poricidal; disk equal or unequal-sided, mostly flat, bearing the adnate petals and the stamens, intrastaminal disk sometimes present; ovary inferior or half-inferior, 2-6 (rarely more)-celled, cells with 1 to many ovules; placentation axile; styles entire or rarely bifurcate; stigma capitate or lobed. Fruit diverse, either baccate, drupaceous or capsule-like, indehiscent or operculate, sometimes wimged, with entirely or partly woody, fibrous or fleshy pericarp. Seeds 1 to many, alate or wingless, exarillate, sometimes embedded in pulpy mass from decayed fruit-septa and placentation; endosperm none; embryo straight or curved.
    About 18 genera, native to South America, certain Pacific islands, South West Asia and western Africa; only one genus in Taiwan.

    1. BARRINTONIA J. R. & G. Forst. 棋盤腳樹屬

    Trees. Leaves mostly approximated towards the ends of the branches, entire or crenato-serrate; stipules small, caducous. Flowers in erect or pendulous racemes or spikes, terminal or lateral; bracts and bracteoles small, soon caducous; calyx-tube not produced above ovary, limb consisting of 3-5 free lobes, or entirely closed before anthesis, afterwards 2-4-lobed, persistent; petals 4, rarely 5-6, basally adhering to staminal tube; stamens tubular at base, inner ones small, anantherous; ovary 2-4-celled; ovules 2-8 in each cell, pendulous from apex of inner angle. Fruit with fleshy-fibrous exocarp and woody-fibrous endocarp. Seed 1, no cotyledons, hypocotyl thick, erect.
    Species about 45, paleotropical, often near seashores.

    KEY TO SPECIES
    1. Leaves obtuse at apex, acute at base; flowers in short erect terminal racemes of length about 10 cm long… 1. B. asiatica
    1. Leaves acuminate at apex, cordate at base, crenulate; flowers in pendulous axillary racemes of length 30-50 cm long… 2. B. racemosa

    1. Barringtonia asiatica (L.) Kurz. in Journ. Asiat. Soc. Beng. 45: 131. 1876; Li in Fl. Taiwan 3: 836. f. 832. 1977. 棋盤腳樹 Pl.449
    Mammea asiatica L., Sp. Pl. 512. 1753.
    A medium-sized tree. Branches thick. Leaves sessile, obovate or oblong-lanceolate-obovate, base often rounded-truncate, apex obtuse, broadly rounded, slightly emarginate or somewhat acuminate, entire,