xanthocarpia lichen on an old board.

lichen xanthocarpia symbiotic epiphytic apothecium thallus lichenology botany botanical plant tree wood forest garden trunk branch bark tree_bark environment beauty beautiful colorful nature natural wildlife wilderness closeup macro macro_photography macrophotography shallow_depth_of_field soft_focus selective_focus blurred_background outdoor outdoors outside natural_lighting day sunny sunshine sunlight no_people