The carpel is homologous with the megasporophylls of certain spore-bearing vascular plants (pteridophytes) and the ovuliferous scales of gymnosperms.
心皮和能产生孢子维管植物(羊齿类)还有
珠
裸子植物
大孢子叶是同
。
The carpel is homologous with the megasporophylls of certain spore-bearing vascular plants (pteridophytes) and the ovuliferous scales of gymnosperms.
心皮和能产生孢子维管植物(羊齿类)还有
珠
裸子植物
大孢子叶是同
。
Bract scale The structure found in large numbers in the female cone of gymnosperms, each bearing an ovuliferous scale in its axil.
裸子植物
雌球果中大量
结构,每个苞鳞都包含一个珠鳞。
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