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Australian Biological Resources Study

Flora of Australia

Compiled by A.McCusker

Back to Glossaries  
axile: on an axis; of a placenta, on the central axis of the ovary.
apical: of a placenta, at the top of the ovary.
basal: at the base; of a placenta, at the base of the ovary.
free-central: of placentation, with the ovules borne on a free-standing central placenta within the ovary.
marginal: occurring at or very close to the margin.
ovule: a structure in a seed plant within which one or more megaspores are formed and which develops into a seed after fertilisation.
parietal: attached to the margins of a structure; of placentation, having the ovules attached to placentas on the wall of the ovary.
placentation: the arrangement of placentas, and hence of ovules, within an ovary.
Ovule Arrangement
Commonwealth of Australia