Turgidosculum

Turgidosculum is a fungal genus in the family Verrucariaceae. It comprises the single species Turgidosculum ulvae. The fungus forms a lichen-like association with a green alga in the Blidingia minima complex, growing as dark green patches on rocky seashores in the intertidal zone. Originally described in 1902 as a parasite on algae, its unusual biology led to conflicting interpretations until molecular studies placed it within the Verrucariaceae. Confirmed records of the species come from the Pacific coast of North America, though the full distribution of the genus remains uncertain....read more on Wikipedia.