Shrimp of the Woods
This is the unaborted form of Entoloma abortivum. The caps were dry, bald, white-gray, and had a slightly inrolled margin. The gills were white-gray, close, and attached to the stem. The stem was finely hairy, had an enlarged base, and white basal mycelium.
The aborted form of this species looks like an irregular blob that is whitish brown outside with white and pink areas inside. For years, it was thought that the aborted forms of Entoloma developed in response to being parasitized by Armillaria species. But, research indicates that the relationship is the other way around: Entoloma is the parasite and the aborted structures are actually Armillaria
''Entoloma abortive'', commonly known as the aborted entoloma or shrimp of the woods, is an edible mushroom in the Entolomataceae family of fungi. First named ''Clitopilus abortivus'' by Miles Joseph Berkeley and Moses Ashley Curtis, it was given its current name by the Dutch mycologist Marinus Anton Donk in 1949.
It was believed that the honey mushroom, ''Armillaria mellea'', was parasitizing the entoloma. But research has indicated that the inverse may be true - the entoloma may be.. more