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Seed Fern

n. an extinct seed-producing fernlike plant of the order Cycadofilicales (or group Pteridospermae)

同义词： pteridosperm

1、[古植]种子蕨

种子蕨（Seed fern）是在石炭纪时期演化的重要植物群体。它们有蕨类般的树叶，但是与真正的蕨类不同。

seed-fern种子蕨类

fern seed蕨类孢子

生物学

n.an extinct seed-producing fernlike plant of the order Cycadofilicales (or group Pteridospermae)

同义词：pteridosperm

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