soredium


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Related to soredium: soredia

soredium

(sɔːˈriːdɪəm)
n, pl -dia
(Botany) an organ of vegetative reproduction in lichens consisting of a cluster of algal cells enclosed in fungal hyphae: dispersed by wind, insects, or other means
[C19: New Latin, from Greek sōros a heap]
References in periodicals archive ?
Hill (1994a) found that, in Parmelia sulcata, the number of cell divisions required for the photobiont to populate a young lobe of 2 [mm.sup.2] from a soredium was about nine but the additional number then needed to form mature lobe 25 [mm.sup.2] was less than one indicating that the very early stages of thallus development are the most likely stage in determining the characteristics of the photobiont population in the mature thallus.