生活型

tree

形態特徵

• An evergreen tree.
• Leaves alternate, chartaceous, oblong, 9–12 cm long, 4–5.5 cm broad, glabrous on both surfaces, acute or shortly acuminate at the apex with short acumen, obtuse at the extremity, obtuse or rounded sometimes acute at the base, the midrib slightly elevated above, but flatish towards the apex, the lateral veins about 8 on each side of the midrib, arcuate-ascending, the veinlets prominently reticulate; petioles 2–3 cm long, glabrous, swollen at both ends.
• Inflorescences axillary or above the scars of the fallen leaves, racemose, with the peduncle about 3–5 cm long, sparsely puberulent; pedicels about 6 mm long, densely puberulent; flower-buds ovate, about 5 mm long; sepals 5, lanceolate, with densely minute-grey hairs on outside, nearly glabrous inside, 5–6 mm long, 1.8 mm broad at base; petals oblong, 6 mm long, usually 3-dented, with a cushion of long woolly hair inside at base; disc villose; usually composed of 10 glands; stamens about 20; anthers linear, 2 mm long, the outer valve produced into an awn, very minutely pubescent throughout; filaments about 1.2 mm long, villous; ovary slightly villous; style glabrous, about 1.2 mm long.
• Fruit ellipsoid, about 1.5 cm long, 0.8 cm across, the pedicel about 1 cm long.
• The species is characterized by the petioles with swollen tops and the petals usually cut into 3, rather short segments.

分布

• 台灣 : Taiwan found only on Is. Lanyu (Botel Tobago).
• 世界 : The Philippines, Celebes and the Ryukyus.

引證標本

TAITUNG: Is. Lanyu, Chang 5514*, Huang & Kao 5184.

引用文獻

• CHANG, CHING-EN-, Flora of Taiwan, second edition 3: 716-718. .  (Fl. Taiwan 2nd edit., 台灣植物誌第二版)