thallus
abstract
algae
backdrop
bark
biology
botany
closeup
countryside
crop
crust
crustose
detail
ecology
ecosystem
environment
flora
fungi
fungus
golden
growth
lichen
macro
maritime sunburst lichen
natural
nature
orange
outdoor
parietina
pattern
plant
rough
scale
stains
surface
symbiotic
texture
tree
xanthoria
yellow
yellow crustose lichen