placentation : Idioms & Phrases


apical placentation

  • noun where one or few ovules develop at the top of a simple or compound ovary
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axile placentation

  • noun ovules are borne at or around the center of a compound ovary on an axis formed from joined septa
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basal placentation

  • noun where one or few ovules develop at the base of a simple or compound ovary
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free central placentation

  • noun where ovules develop on a central column in a compound ovary lacking septa or with septa at base only
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lamellate placentation

  • noun with ovules on thin extensions of the placentae into a compound ovary
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marginal placentation

  • noun with ovules borne on the wall along the ventral suture of a simple ovary
    marginal placentation.
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parietal placentation

  • noun where ovules develop on the wall or slight outgrowths of the wall forming broken partitions within a compound ovary
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ventral placentation

  • noun with ovules borne on the wall along the ventral suture of a simple ovary
    marginal placentation.
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