Glossary: cyathium


a small cup-like structure, characteristic of the genera Euphorbia, Monadenium and Synadenium, bearing on its rim variously-shaped glands (these sometimes separate and circular or crescent-shaped or fused into an entire marginal rim) with alternating lobes; within this cup are several naked male flowers, consisting of a stalked stamen and bracteole, and 1 central female flower bearing a 3-locular ovary with 3, often 2-fid, styles.

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Copyright: Mark Hyde, 2008-24

Hyde, M.A. (2024). UK Flora: Glossary details: cyathium., retrieved 4 March 2024

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