Gyalideopsis

Gyalideopsis is a genus of lichen-forming fungi in the family Gomphillaceae. Gyalideopsis species form delicate, film-like crusts on a wide variety of surfaces including tree bark, rocks, and mosses, often in tropical and temperate forests worldwide. Species in the genus produce distinctive small, scale-like structures called hyphophores, which are thought to aid in asexual reproduction where ascospore-producing structures are absent or uncommon. Members of this genus lack the distinctive chemical compounds found in many other lichens, making them reliant on microscopic features and spore characteristics for scientific identification....read more on Wikipedia.