Platygramme

Platygramme is a genus of lichen-forming fungi in the family Graphidaceae consisting of about 27 species. The genus was circumscribed by Antoine Laurent Apollinaire Fée in 1874. The type species of the genus is P. caesiopruinosa. These bark-dwelling lichens are found in moist, shaded forests across tropical and warm temperate regions worldwide, where they form pale crusts that develop distinctive flattened, plate-like fruiting structures. A combination of several features characterizes Platygramme: the brown ascospores, a spore-producing layer (hymenium) speckled with granules, and elongated fruiting bodies (lirellae) with distinctive plate-like structures formed from hardened tissue....read more on Wikipedia.