Categories David Amanita Mold Hypomyces hyalinus Post author By David Post date 24 July 2020 A mould almost completely covers the above-ground surface of a mushroom. The mushroom is one of the amanita species, so I’m assuming the mould is the amanita mould (or mold). ← Young nuthatch high in tree → Two mallard ducklings, Old Nursery Pond