RMAJWBRB–Colorful colourful crustose lichens and snow on a rock.
RMD6CB8H–Lichens on a Gravestone; UK
RMJCHKM9–Lichens on rock (Epilithic crustose lichen) - Arizona, USA
RMEPP553–Colonies of crustose lichens growing on rocks in the Southern Alps of South Island New Zealand
RMPHDM8Y–rock with lichens , Sandfell, Iceland, Europe
RMTR6FW0–colourful lichens in s rock, Spain, Balearic Islands, Majorca
RMAP68WR–Verity of lichens yellow Candelariella sp or possibly a Caloplaca sp encrust coastal rocks of Sea Lion Island East Falkland
RMC2MR3H–Lichens and mosses on granite stone rock close up - grey abstract stone texture
RMTYK2KG–Lichens at an old wall
RMA990DP–Helichrysum mosses and lichens Senatti Plateau Bale Mountains National Park Ethiopia
RMAWPB18–Lichens on Grave stones eyeworth church bedfordshire
RMJ452W7–photo of an Anatolian worm lizard on a rock with lichens
RMDRNMYG–Encrusting Lichens On Stone
RMD6CB07–Crustose Lichens Growing on Gravestone
RM2ABP097–Silver birch / warty birch / European white birch (Betula pendula / Betula verucosa) tree covered in old man's beard lichens (Usnea species) in winter
RFBDEAYM–Yellow and grey lichens grow together. An original natural background