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Dipteridaceae

雙扇蕨科

特徵描述
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特徵描述

作者

DEVOL, CHARLES E. and SHIEH, WANG-CHUENG

型態特徵

Rhizome woody, creeping, covered with very narrow linear, dark, stiff scales; siphonostelic. Fronds broadly fan-shaped, cleft to base into two equal divisions, each half dichotomously divided into several long linear lobes; main veins dichotomous, with many nearly parallel smaller veins connecting the main veins at right angles, forming oblong areolae, these sub-divided into many small rectangular areolae; stipes stout, longer than lamina, grooved on upper side, without scales except at base. Sori small, round, exindusiate, one per small areola, borne on junction of veinlets; paraphyses mixed with sporangia.

Only one living genus.

參考文獻

Dipteris 雙扇蕨屬

作者

DEVOL, CHARLES E. and SHIEH, WANG-CHUENG

型態特徵

The characters of the genus are the same as given for the family.

參考文獻

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學名 中名 標本數