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Lichens, Graphis seripta on balsam
Lichens, coral-like, and twigs of sumac, close up
Lichens, coral-like, and twigs of sumac
Lichens, Cladonia, sterile, cup-life
Lichens, Cladonia, scarlet tips
Lichens, Cetraria ciliaris
Lichen, Rinodina oreina (Dimelaena oreina)
Lichen, Physcia caesia
Lichen, Parmelia capirata
Lichen, Lecanora cinerea (Aspicilia cinerea)