protobasidium

noun
pro·​to·​basidium | \ "+\
plural protobasidia

Definition of protobasidium

: a basidium (as a promycelium) that is divided into four cells each of which gives rise to a single basidiospore and that is characteristic of the subclass Heterobasidiomycetes

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History and Etymology for protobasidium

New Latin, from prot- + basidium

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