crustose lichen on a rock
crustose lichens
crustose lichen section
Parmelia
foliose lichen
lung lichen
rock tripe
foliose lichen
apothecia of Physcia
British soldier lichen
ladder lichen or pixie cup
awl lichen
awl lichen
pixie cup
ladder lichen
reindeer moss (a lichen)
old man's beard
lichen soredia
lichen soredia closeup
lichen soredia scaped off onto paper
chemical test on Xanthoria candelaria

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