candelariella, a genus of yellow or ochre crustose or squamulose lichens in the family lecanoraceae. common names are yolk,

abstract areoles background beautiful brown candelariella closeup color crust crustose ecological eggyolk forest genus goldspeck growth lecanoraceae lichen natural nature ocher ochre outdoors pattern plant post rhizoplane species squamulose stone summer wild yellow yellowish yolk