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(羊齿类)还有具胚珠裸子大孢子叶是同。
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(羊齿类)还有具胚珠裸子大孢子叶是同。
Bract scale The structure found in large numbers in the female cone of gymnosperms, each bearing an ovuliferous scale in its axil.
在裸子果中大量存在结构,每个苞鳞都包含一个珠鳞。
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