Two new genera of agarics based onPsilocybe corneipesandPhaeocollybia perplexa

摘要

Two macroscopically similar species of agarics with the unusual combination of corneous stipes and pigmented basal mycelium are the types of two new genera.Mythicomycesis typified byAgaricus corneipesFries, a species with roughened purplendash;brown basidiospores and brownish metuloidal hymenial cystidia.Stagnicolais typified byPhaeocollybia perplexaOrton, a species with smooth yellowish brown basidiospores and thin-walled cheilocystidia. Both types inhabit wet depressions in northern coniferous forests.