"Lobaria pulmonaria" is a large epiphytic lichen consisting of an ascomycete fungus and a green algal partner living together in a symbiotic relationship with a cyanobacterium—a symbiosis involving members of three kingdoms of organisms.
Similar species: Peltigerales

By gary fast
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Uploaded Dec 15, 2019. Captured in 729-753 Whaletown Rd, Mansons Landing, BC V0P 1K0, Canada.