Almost everywhere I go exploring I find old stone fencerows, now lost in the woods, the boundaries of some long forgotten fields. This one is right in our own yard, where we have a stone fencerow providing background for the garden.
Lichens are one of the plant groups I've never learned to identify, but maybe I'll make it a new project. They are actually two plants, a fungus and an algae, living in a co-operative or 'symbiotic' relationship where the algal partner brings the ability to photosynthesize, helping the fungus survive.
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