Lecania is a genus of lichen-forming fungi in the family Ramalinaceae. Lecania is widely distributed, especially in temperate regions, and contains about 65 species. These lichens form thin, crusty growths on various surfaces and produce small disc-shaped fruiting bodies that are typically brown to black in colour. Most species reproduce both sexually through spores and asexually through tiny reproductive structures, allowing them to spread effectively in their environments.

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