close up of a deer shield, pluteus cervinus, growing in a rotted inside of an alder trunk

alder trunk deer shield pluteaceae pluteus cervinus spookverlaat cup autumn background bark wall beautiful bellshaped biotope cap surface close closeup colored conical deciduous tree mushroom digest domeshaped fawn flat bump fruiting body fungal threads fungus green grow habitat hazy inside macro medium brown natural nutrients organic outdoors rotten wood saprotrophic season smooth stem still present dweller yellow growing rotted like