Definition of promycelium
: a short usually 4-celled hyphal filament that constitutes the basidium of various heterobasidiomycetous fungi, is formed by germination of a teliospore in rusts or of a chlamydospore in smuts, and bears sporidia —called also epibasidium — compare autobasidium
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Origin and Etymology of promycelium
New Latin, from 1pro- + mycelium
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