“…The cortical layer of the pileus is a trichoderm composed of gelatinized hyphae, with elongated elements and subclavate terminal cells. Distribution -In Brazil, this species has been found from north to south, in Rio Grande do Sul, São Paulo, Amazônia (RICK, 1937(RICK, , 1961as Armillaria mucida Schrad. ); SINGER, 1950SINGER, , 1953SINGER, , 1955SINGER, , 1964as Agaricus radiculosus Cooke); BONONI et al, 1981;PUTZKE & PEREIRA, 1988;GUERRERO & HOMRICH, 1983, PUTZKE & PUTZKE, 2022REFLORA, 2022).…”