Project 366 – Post No. 167 – Shield lichen

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Lichens are cool critters. They are a composite organism consisting of an algae or bacteria living in a mutualistic relationship with a fungus. The resulting lichen has properties different from those of its component organisms. While lichens share features with plants, e.g. growing in a specific location, the inability to move and sometimes a plant-like shape, they are not plants. A mutualistic relationship is characterized by two different organisms coexisting and working together, each benefiting from the relationship. It’s sort of reminiscent of a marriage. Lichen s can be tricky to identify, but this one appears to be a species of shield lichen, possibly a Common Greenshield Lichen (Flavoparmelia caperata).

Shield lichen at Whitemud Ravine. September 9, 2019. Nikon P1000, 158mm @ 35mm, 1/40, f/4, ISO 400

May the curiosity be with you. This is from “The Birds are Calling” blog (www.thebirdsarecalling.com). Copyright Mario Pineda.