Short title: New Stropharia from southern Brazil New species of Stropharia from Araucaria angustifolia forests of southern Brazil

Two new agaric species of Stropharia are described from Araucaria angustifolia (Brazilian pine) forests of southern Brazil. Stropharia agaricoides presents Agaricus-like basidiomes, small basidiospores (5-7 μm long) and pyriform cheilochrysocystidia. Stropharia venusta is characterized by the reddish to pinkish pileus, large basidiospores (12-15 μm long) and subclavate cheiloleptocystidia.