eastern jack-o'-lantern mushroom - omphalotus illudens

mushroom fungus autumn woodland forest nature tree leaf flower wildlife plant soil eastern jack-o'-lantern omphalotus illudens jack cluster jack-o' mushrooms growing england ground forest illudin green bioluminescence nonedible natural saprophyte hardwood decomposer medicinal medical field research wild england gills head stalk body fruiting biodiversity connecticut nature oncology mycology science treatment cancer irofulven pumpkin orange sick dangerous poisonous poison foraging illudens omphalotus cytotoxic toxic cluster clump mushroom lantern jack fungi