Gyalideopsis pseudoactinoplaca

Gyalideopsis pseudoactinoplaca is a species of corticolous (bark-dwelling) crustose lichen in the family Gomphillaceae. The pale greenish-grey lichen forms thin, slightly shiny crusts on bark and rotting logs in cloud forest environments, and is currently known only from Costa Rica's Tenorio Volcano National Park. Unlike many lichens, it has not been observed to produce typical cup-like reproductive structures (apothecia), instead reproducing through unusual spherical, stalkless specialized structures that sit directly on the surface, which researchers believe represent an evolutionary simplification of typical reproductive structures through complete reduction of supporting elements....read more on Wikipedia.