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Pentaphylacaceae

五列木科

Flora of Taiwan
Theaceae 茶科
特徵描述
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特徵描述

[ Theaceae 茶科 ]

作者

HSIEH, CHANG-FU, LING, LAI-KUAN and YANG, KUOH-CHENG

型態特徵

Erect evergreen trees or shrubs. Leaves alternate, simple, usually serrate, penninerved, estipulate. Flowers axillary, rarely terminal, solitary, occasionally fasciculate, actinomorphic, usually bisexual, often with 2 bracts below the calyx. Sepals mostly 5, imbricate, free or very shortly united, often unequal. Petals 5, rarely 4 to many, free or basally connate, imbricate. Stamens numerous, rarely as few as 5, free or connate below, usually adnate to base of petals. Ovary superior, rarely half-inferior, mostly 3–5-celled, ovules 2 to many in each cell, placentas axile; styles as many as carpels, free or partly connate. Fruit a berry or drupaceous, but often capsular; seeds 1 to many, winged or wingless; embryo large, straight or curved; endosperm present or absent, rarely abundant.

Nearly 17 genera, with about 600 species; mostly distributed in eastern and southeastern Asia, with several genera in South America, Central America, Africa and southeastern United States; nine genera in Taiwan.

參考文獻

Adinandra 楊桐屬

作者

HSIEH, CHANG-FU, LING, LAI-KUAN and YANG, KUOH-CHENG

型態特徵

Trees or shrubs. Leaves coriaceous, alternate, usually shallowly serrate. Flowers axillary, solitary or in pairs, bisexual, the pedicels long, bearing near apex 2 bracteoles; sepals 5, connate at base; stamens numerous, 1- to 5-seriate, adnate to the base of corolla, filaments usually united, anthers basifixed, hispid, connective prolonged, mucronate; ovary 3- or 5-celled; style simple, persistent, filiform, rarely 3- to 5-branched; ovules usually numerous in each cell. Fruit globose or ovoid, indehiscent; seeds numerous to few.

About 70 species, mostly in the southeastern Asia and China, others in India, New Guinea and tropical Africa. Two species and one variety in Taiwan.

參考文獻

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