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so•re•di•um



Pronunciation: (su-rē'dē-um), [key]
n.,
pl. -di•aPronunciation: (-dē-u). [key]
(in a lichen)
a group of algal cells surrounded by hyphal tissue, occurring on the surface of the thallus and functioning in vegetative reproduction. Also called brood bud, hologonidium.

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

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