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