特徵描述
作者
LI, HUI-LIN and LO, HANN-CHUNG
型態特徵
Trees or erect shrubs, often with salt or aerial roots, usually inermous, without milky latex. The vegetative and floral parts are glabrous (if not otherwise mentioned). Stem-nodes swollen. Leaves opposite or distichous, petioled, simple, entire or shallowly serrate, coriaceous, glabrous; stipules mostly present, small or large, interpetiolar, early caducous, leaving an annular scar. Flowers in cymes or solitary, in axiles of whether or not fallen leaves, regular, bisexual, rarely unisexual or polygamous; calyx-tube more or less adnate to ovary, lobes 4–15, valvate in bud, persistent; petals as many as calyx-lobes, delicate, caducous; stamens mostly twice the number of petals, surrounding the disk; anthers basifixed or dorsifixed, either many-celled and 1-valvate, or with 2 longitudinally dehiscent cells; ovary from superior to nearly entirely inferior, 1–8-celled; ovules 1–6 in each cell, born at apex or in inner angle of ovary-cell; style 1. Fruit fleshy, indehiscent. Seeds 1–7, whether or not germinating on the plant (vivipary), often endospermous.
屬
Genera about 17, several of them comprising the characteristic mangrove vegetation mainly throughout the paleotropic regions of the world. Previously there were 4 genera in Taiwan, but now Bruguiera gymnorrhiza (L.) Lam. and Ceriops tagal (Perr.) C.B. Robinson can not be found any more in Kaohsiung.
參考文獻
Rhizophora 紅樹屬
作者
LI, HUI-LIN and LO, HANN-CHUNG
型態特徵
Trees, stem and branches provided with stilt or aerial roots. Leaves entire, distinctly mucronate, brown-dotted beneath, nerves and veins obscure below. Flowers in cymes, 2–16; peduncle simple or 2–3-furcate; flower part 4-merous; calyx subtended by a cup-shaped involucre of bracteoles, tube produced beyond ovary; petals entire; stamens 8–12, inserted on margin of disk; anthers multilocullate, dehiscent with a large ventral valve; ovary 2-celled, free apex subconical; 2 ovules in each cell; style subulate or filiform; stigma bidentate. Fruit ovoid or obpyriform, 1-seeded; seed germinating on the plant; cotyledons united into a fleshy body, its apex stalk-like, finally protruding from the fruit and freed from the embryo still attached to the plants during a long time; hypocotyl long, clavate.
