Gemma

Quick meaning: Gemma is a noun meaning (biology) An asexual reproductive structure, as found in animals such as hydra (genus Hydra) and plants such as liverworts (division Marchantiophyta), consisting of a cluster of cells from which new individuals can develop; a bud.

Meaning

(biology) An asexual reproductive structure, as found in animals such as hydra (genus Hydra) and plants such as liverworts (division Marchantiophyta), consisting of a cluster of cells from which new individuals can develop; a bud.

Example Sentences

I know of no other genera with such intramarginal formation of true gemmae.

Gemmae are frequently longer than wide or of irregular shape. According to Degenkolbe, gemmae-bearing leaves are always different in form from normal leaves.

In Marchantia polymorpha, high temperature promotes germination of gemmae (Dacknowski, 1907), and heat absorbed by the gemmae accelerates their germination (Fitting, 1942).

Word Forms

• gemmas
• gemmae

Synonyms for gemma

Depending on context, synonyms include gemmule.

Related Words

Related dictionary entries include gemmule, gemmation, gemmification, gemmiparity, gemmulation, propagulum.

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