Noun
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| placentation -
arrangement of the ovules in the placenta and of the placentas in the ovary
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reproductive structure the parts of a plant involved in its reproduction
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apical placentation where one or few ovules develop at the top of a simple or compound ovary
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axile placentation 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 where one or few ovules develop at the base of a simple or compound ovary
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free central placentation 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 with ovules on thin extensions of the placentae into a compound ovary
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marginal placentation,
ventral placentation with ovules borne on the wall along the ventral suture of a simple ovary
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| placentation -
the formation of the placenta in the uterus
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