Panaeolus_semiovatus
Panaeolus semiovatus var. semiovatus
Species of fungus
Panaeolus semiovatus var. semiovatus, also known as Panaeolus semiovatus and Anellaria separata, and commonly known as the shiny mottlegill, ringed panaeolus,[1] or egghead mottlegill, is a medium-sized buff-colored mushroom that grows on horse dung, and has black spores. Though nonpoisonous,[2] it is generally regarded as inedible,[3] and a few people experience gastric upset after consumption.