生活型

tree

形態特徵

• Evergreen trees to 20 m tall; branchlets brown puberulous, glabrescent or nearly so, with distinct leaf scars.
• Leaves clustered at end of branches, thickly coriaceous, oblong, obovate or narrowly obovate, (9.0–)10.1–13.0(–19.8) cm long, (4.6–)5.0–7.6(–12.5) cm wide; apex acute, rounded to subemarginate, base obtuse; margin entire; glabrous or nearly so, shining dark green adaxially, partially pubescent and slightly paler abaxially; midrib and veins subconspicuous adaxially, raised abaxially, lateral veins 7–9(–10) per side; petiole short, 0.3–0.7(–1.1) cm long.
• Flowers in axillary clusters, 0.8–1.2 cm in diameter; calyx 2-whorled, each 3-lobed, outer whorl brown pubescent, lobes obtuse; corolla pale yellow, 6-lobed, lanceolate; pedicel 1.2–2.8 cm long.
• Fruits freshy, globose, (2.4–)3.4–4.0(–4.5) cm long, 1.2–2.5 cm in diameter, olive colour when young becoming black at maturity. Seeds usually 1, large, 2.5–3.0 cm long, dark brown.

分布

• 台灣 : limited to tidal forests in the north and south to Lanyu Is. (Botel Tobago) and Lutao Is.
• 世界 : The Philippines (Luzon, Batan and Babuyan)

引證標本

TAIPEI: Taipei Bot. Gard., K. C. Yang 4657. KEELUNG: Keelung, S. Sasaki s. n. 1911. ILAN: Suao, S. Suzuki s. n. 1931. PINGTUNG: Hengchun, Kengting Park, C. C. & R. Hsu 4164; Ooluanpi, Chuang 4895; Wanlitung, Kanehira s. n. 1918; Manchou, Kaoshifo, Kudo & Suzuki s. n. 1928. TAITUNG: Lanyu Is., Kawakami & Nakahara s. n. 1906 (Type of P. polyandrum Hayata; TAIF!); Mt. Hongtoushan, Yang et al. 8667; Tungchin, Bridge Longmenchiao, Yang et al. 10017; Lutao Island, Kudo & Mori s. n. 1930; Peinan, Kawakami 4920.

引用文獻

• LI, Hui-Lin and YANG, T. Y. Aleck, Flora of Taiwan, second edition 4: 83. 1998.  (Fl. Taiwan 2nd edit., 台灣植物誌第二版)