特徵描述
作者
LI, HUI-LIN and LO, HANN-CHUNG
型態特徵
Trees or shrubs, rarely scandent, mostly inermous, without milky latex. Leaves spirally arranged or distichous, rarely opposite, simple, petioled; blade often with base asymmetric; stipules usually small, rarely large, or absent. Flowers terminal, axillary or on old wood, solitary or in clusters or racemes, subtended by bracts, actinomorphic, bi- or unisexual and dioecious; sepals 3–6, rarely more, free or connate, imbricate or valvate, mostly persistent; petals 3–8, rarely more, or absent, imbricate or valvate; receptacle might deepen in the center, mostly with appendages as disk lobes, fine threads, petal-scales or staminodes; disk present or not, entire, lobed or dissolved into glands; stamens 5 to numerous, hypogynous, mostly free, or monadelphous; anther cells 2, longitudinally dehiscent; ovary mostly superior, rarely semi-inferior or inferior, 1-celled (except Flacourtia) with 2–10 parietal placentas, sometimes incompletely 2–10 celled by deeply penetrating placentas, each with 2 to numerous ovules; styles 1–10, free or connate; stigma sessile. Fleshy or dry berry, drup or loculicidally dehiscent capsule. Seeds 1 to many, sometimes arillate; endosperm copious; embryo axile; cotyledons mostly broad, foliaceous.
屬
Mostly tropics, 84 genera, ca 1,300 species. 6 genera with 6 species in Taiwan.
參考文獻
Homalium 天料木屬
作者
LI, HUI-LIN and LO, HANN-CHUNG
型態特徵
Trees or shrubs. Leaves wavy, crenate to serrate-dentate, or nearly entire, pinnately nerved; stipules caducous or absent. Flowers in axillary and subterminal many-flowered racemes, spikes or panicles, bisexual; calyx-tube obconical, solitary or 2–8 together; filaments filiform; anthers small, 2-lobed; disk represented by a gland opposite each sepal; ovary semi-inferior or nearly inferior; placentas 2–8, each with 1–7 ovules near apex; styles 2–7, free or shortly connate; stigmas small or punctate. Capsule semi-inferior or nearly inferior, seated within the persistent calyx, coriaceous, 2–8-valved from apex or indehiscent. Seeds 1 or few, minute, without aril.
