找植物
找標本
電子書

Stemonuraceae

金檀木科

特徵描述
屬列表
標本列表

特徵描述

Gomphandra 毛蕊木屬

作者

CHANG, CHING-EN

型態特徵

Dioecious trees or shrubs. Branchlets slender, smooth. Leaves spiral, chartaceous to coriaceous, often tubercled beneath, penninerved. Flowers in short cymes, these several from an axillary peduncle, the male many, the female few flowered; calyx cupular, minutely 4–5-toothed; petals 4–5, free or coherent below. Disk absent or obscure. Male flowers: stamens 4–5, usually exserted; filaments flattened, with subclavate hairs on the ventral side below the anthers and dorsally at the connective; rudiment of ovary conspicuous. Female flowers: petals sometimes absent; ovary cylindric; stigma sessile, discoid, slightly 4–5-lobed or 4–5 crenate. Drupes ellipsoid or oblong, sometimes shortly beaked, base sometimes swollen; endocarp crustaceous or hard, with 8–10 longitudinal ridges especially prominent in the dry fruit.

參考文獻

標本列表