This morning we hiked on our own out from the Broadway Trailhead into the Tonto National Forest on the Jacob's Crosscut trail. The path travels through one of the densest Saguaro "forests" in the Sonora desert (saguaros exist only in the Sonora Desert).
Each time we walk in the desert we feel amazed to see lichen on rocks - it seems we shouldn't be surprised! Our tour guide at the Arboretum told us that they are a symbiotic relationship of fungus and algae and, even though this is an extreme environment, they are remarkably resourceful.
Lichen forms a delicate pattern
Many colours of lichen on one rock
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