A crustose species with a pale white-grey thallus that is smooth, continuous and somewhat cracked. Rounded soralia initially form along the cracks in the cortex, but quickly become confluent and irregular to form a leprose crust.
Cortex and soralia: C+ yellow, K-, UV+ white
In Scotland, Ochrolechia microstictoides is widespread in upland regions where it is found on acid-barked trees and fencetops. BLS distribution map
scottishlichens.co.uk 