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单词 Williamsoniaceae
释义

Williamsoniaceae /ˌwiljəmsə'naiəsi,i:/

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维立松苏铁科
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  • Williamsburg n. 威廉斯堡(美国弗吉尼亚州东南部城市)
  • voluminousness n. 浩瀚,广博

网络短语:
Williamsoniaceae 维立松苏铁科
英语百科

Williamsoniaceae

Williamsoniaceae is a family within the Bennettitales, an extinct group of seed plants within the Cycadophyta subdivision. Members of this family are believed to have been around two meters tall and with widely serrate leaves along a central stem. Reproductive organs of the Williamsoniaceae have varied widely in the fossil record but almost all have been found to be borne on stalks emerging from a ring of leaves.

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更新时间:2025/6/20 15:34:01