Jutta Buschbom

Porpidia flavocruenta is a species of saxicolous (rock-dwelling) crustose lichen in the family Lecideaceae. The species forms a bright orange to yellow crust on rock surfaces and is particularly distinctive because of its characteristically black fruiting bodies that often have a greyish or orange dusting on their surface. It grows in cool, damp upland habitats on siliceous rocks, typically in shaded locations such as rock overhangs and cliff faces where moisture levels remain high throughout the year. Although it was only formally described in 2005, earlier specimens from across northern