Megaspora iranica

Megaspora iranica is a species of lichen in the family Megasporaceae. This bark-dwelling lichen forms whitish to pale grey crusts with a distinctive network of cracks filled with greyish powdery reproductive granules, giving it a characteristic tessellated appearance. It is known from scattered sites across north-eastern Iran and central Asia, where it grows on the bark of deciduous trees such as white mulberry and Montpellier maple.