gemma

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gem·ma

(jem'ă),
Any budlike or bulblike body, especially a taste bud or end bulb.
[L. bud]
Farlex Partner Medical Dictionary © Farlex 2012

gemma

(jĕm′ə)
n. pl. gemmae (jĕm′ē′) Botany
An asexual budlike propagule capable of developing into a new individual, as in liverworts.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

gemma

(pl. gemmae) a small group of cells that serves as a means of vegetative reproduction in some mosses and liverworts. These cells become detached from the main THALLUS and often occur in cup-like structures referred to as gemma-cups. Each gemma is capable of developing into a new plant.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005