Haematomma eremaeum

Haematomma eremaeum is a bark-dwelling crustose lichen in the family Haematommataceae. It is a small lichen that grows on the bark of trees and shrubs in dry inland areas of Western Australia, where it appears as a greyish crust. The species is distinguished by its tiny red-coloured fruiting bodies, and by the presence of a rare chemical compound in its tissues. It was first formally described in 1982 when lichenologist Roderick Rogers revised the Australian species in its genus....read more on Wikipedia.