Archaeoƒacts : Lichens green up

Nature News: Why lichens appear green when it rains

Living with Nature - School on Blog by Dr. Abercio V. Rotor: Lichens: Nature's Indicator of Fresh Clean Air

Green shield lichen hi-res stock photography and images - Alamy

Common greenshield lichen

Nature News: Why lichens appear green when it rains

Association of foliose corticolous lichens on the bark of a tree, Common greenshield lichen (Flavoparmelia caperata) and Hammered shield lichen (Parme Stock Photo - Alamy

Long-term dynamics of the iconic old-forest lichen Usnea longissima in a protected landscape - ScienceDirect

Nature News: Why lichens appear green when it rains

Arboretum Lichens

Lichen on Treebark Collection - Lee Angold