Honey fungus

The fruit bodies of the fungus are mushrooms that grow on wood, typically in small dense clumps or tufts. Their caps are typically yellow-brown, somewhat sticky to touch when moist, and, depending on age, may range in shape from conical to convex to depressed in the center. The stem may or may not have a ring. All Armillaria species have a white spore print and none have a volva (compare Amanita).[2]

Grossly similar species include Pholiota spp. which also grow in cespitose clusters on wood and fruit in the fall. However Pholiota spp. have a yellowish to greenish yellow cast and a dark brown to grey-brown spore print. Mushroom hunters need to be especially wary of Galerina spp. which can grow side by side with Armillaria spp. also on wood. Galerina has a dark brown spore print and is deadly poisonous.