生活型

tree

形態特徵

• Evergreen trees 10–20 m tall with trunk straight; branches glabrous, puberulent when young.
• Leaves lanceolate to rarely ovate, 7–18 cm long, 2.5–4 cm wide, glabrous, thickly chartaceous, concolorous at both surfaces, base rounded to acute, margins serrate at least from middle to apex, apex caudate; midvein and secondary veins adaxially elevated, secondary veins 9–12 pairs; petioles 1–2.5 cm long.
• Female inflorescences borne on apical part of 1st-year branchlets; female flowers 1 or rarely 2 per cupule. Infructescences 8–15 cm long; cupules globose, 2.5–3.5 cm in diam., usually splitting into 3–5 segments, outside densely grayish brown, inside densely brown villous, wall 1–1.5 mm thick; bracts spinelike, almost entirely covering the outside of cupule, 6–12 mm long, connate at base or lower parts.
• Nuts compressed globose, 1.2–1.6 cm long, 1–1.3 cm wide, puberulent; scar basal, 8–10 mm in diam.

物候

Flowering from May to July; fruiting from September to November.

分布

• 台灣 : growing on upper slopes and ridges of Machia in Pingtung County, altitudes between 800 and 1,100 m.
• 世界 : Distributed in S and SW China, Vietnam.

引證標本

PINGTUNG: Jhinlishan, C. K. Yang & F. S. Chou 1340 (SYSU); Baibinshan, C. K. Yang & F. S. Chou s.n. 2005 (SYSU).

參考文獻

• Chou, Liao & Yang, Taiwania 51(2): 148. 2006.