Bolbitius vitellinus, Egg-yolk Fieldcap, Hunter Valley, Australia.
The poisonous Magpie Fungus (Coprinopsis Picacea) is a native of the British isles. First described in 1785. Preferring alkaline soil, it is usually found in beech woods in late summer and early fall. Additional family members occur in North America and throughout Europe.
thawing: Fungi - Marasmius Rotula - Marasmius from the Greek word for wither or shrivel, referring to the ability of this mushroom to shrivel in dry weather and then rehydrate to full size when it rains.