About Phyllotopsis nidulans (Pers.) Singer
This fungus, Phyllotopsis nidulans, has caps ranging from 2 to 10 centimeters (3⁄4 to 4 inches) wide. Its stems are either very short or completely absent. The flesh has a thiol-like odor that resembles rotten cabbage or rotten eggs. The spore print of this species is pink to tannish in color. Its smooth basidiospores are shaped like sausages or cylinders, and measure 5–7 μm long by 2–3 μm wide. Clamp connections are present in the species' hyphae. Fruit bodies of Phyllotopsis nidulans grow either singly or in overlapping clusters on dead wood. This fungus is widely distributed across temperate regions of the Northern Hemisphere. Its range extends north as far as Alaska, and also includes Costa Rica, where populations have been recorded in the Talamanca mountains and on Poas Volcano. In Asia, the species has been recorded in Korea.