#Umbilicaria rigida
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Umbilicaria rigida
Roughened rocktripe lichen, sandpaper rocktripe lichen
images: source | source
#lichen#lichens#lichenology#lichenologist#mycology#ecology#biology#fungi#fungus#nature#symbiosis#symbiotic organisms#algae#trypo#trypophobia#Umbilicaria rigida#Umbilicaria#rocktripe lichen#rocktripe#I'm lichen it#lichen a day#daily lichen post#lichen subscribe#life science#environmental science#natural science#the natural world#beautiful nature#weird nature#go outside
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