生活型

tree

形態特徵

• Small to medium-sized dioecious tree, to 18 m tall; branches shout, stiff, suberect; yellow-green, strongly 4-angled (6-lined), partly puberulous.
• Petioles (5)10-20(30) mm long, stout, angular, transversely wrinkled, with semilunar basal fold (pseudo-ligule), puberulous; lamina (8-)9-12.5 cm long, 5-6.5(-10) cm broad, oblong to elliptic or subcircular, apex rounded to retuse, margin recurved, base broadly cuneate to rounded, firmly coriaceous, shining, glabrous, lateral nerves obscure to nearly obsolete.
• Inflorescence from lower axils of current growth, 4-6-flowered, fascicled; flowers 5-merous, subsessile or pedicels to ca. 10 mm long, glabrous, convex, in bud globose. Male flowers with outer 2 sepals subcircular, rounded, 2-4 mm long and broad, inner 3 subreniform, 3-4 mm long, 4-5 mm broad, rounded, all puberulous or glabrescent outside, margin ciliate; petals pale green, 8-10 mm long, 6-8 mm broad, elliptic to elliptic-subcircular, with recurved, finely ciliate margin; stamen fascicles free, erect, slender, each with 6-10 stamens, anthers subglobose, dehiscing longitudinally, filaments free for ca. 1 mm; sterile fascicles forming spongy 5-lobed central mass; rudimentary ovary absent. Female flowers with similar perianth; staminodial fascicles with 3 staminodes; sterile fascicles free, obovate, plano-convex, alternating with the staminodial fascicles; ovary subglobose, 5-lobed; stigmatic mass 5-lobed, on short style.
• Berry 3-4.5 cm in diam., depressed-globose, smooth.

分布

• 台灣 : south and Lutao Is.
• 世界 : The Philippines (Luzon), (Ryukyu Is. (Naha), Cultivated). In thickets along the seashore. Sometimes planted.

引證標本

TAIPEI: Taipei (cult.), fide Li, Woody Fl. Taiwan: 601. KAOHSIUNG: Hsieh 26. PINGTUNG: Kudadu, Sasaki 076948. TAITUNG: Lutao Is. (fide Li).

引用文獻

• ROBSON, NORMAN K. B., Flora of Taiwan, second edition 2: 698. 1996.  (Fl. Taiwan 2nd edit., 台灣植物誌第二版)