Tetragoniomyces gen.nov. and Tetragoniomycetaceae fam.nov. (Tremellales)

Abstract
The general structure of Tremella uliginosa Karst. is discussed. Basidia of the species are thick walled, deciduous and germinate directly, i.e., without spore production. Dikaryotic hyphae grow directly from the basidium, or alternatively, a pair of germ tubes conjugate outside the basidium to initiate the dikaryon. Because of its distinctive basidial structure and function, the species is placed in a new genus, TETRAGONIOMYCES gen. nov., and family, TETRAGONIOMYCETACEAE fam. nov.

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