Bract scale The structure found in large numbers in the female cone of gymnosperms, each bearing an ovuliferous scale in its axil.
鳞:在裸子植物的雌球果中大量存在的结构,
鳞都包含一
珠鳞。
Bract scale The structure found in large numbers in the female cone of gymnosperms, each bearing an ovuliferous scale in its axil.
鳞:在裸子植物的雌球果中大量存在的结构,
鳞都包含一
珠鳞。
The carpel is homologous with the megasporophylls of certain spore-bearing vascular plants (pteridophytes) and the ovuliferous scales of gymnosperms.
心皮和产生孢子的维管植物(羊齿
)
有具胚珠的裸子植物的大孢子叶是同源的。
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