Bract scale The structure found in large numbers in the female cone of gymnosperms, each bearing an ovuliferous scale in its axil.
苞:在裸植物雌球果中大量存在结构,每个苞都包含一个。
Bract scale The structure found in large numbers in the female cone of gymnosperms, each bearing an ovuliferous scale in its axil.
苞:在裸植物雌球果中大量存在结构,每个苞都包含一个。
The carpel is homologous with the megasporophylls of certain spore-bearing vascular plants (pteridophytes) and the ovuliferous scales of gymnosperms.
皮和产生维管植物(羊齿类)还有具胚裸植物大叶是同源。
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