pc290390 white-egg bird's nest fungus, crucibulum crucibuliforme, on rotting wood, cecp 2023

whiteegg bird 039 nest common fungus fungi crucibulum crucibuliforme agaricales nidulariaceae fruit bodies fruiting macro bark rotten wood leaf litter close closeup detail small natural forest garden nature brown tiny growing north america europe decaying mycology colour colorful bright mushroom peridioles splash cups