Biatora aureolepra

Biatora aureolepra is a species of lichen in the family Ramalinaceae, first found in inland rainforests of British Columbia. This lichen forms thin, powdery crusts that are bright yellow-green when fresh but fade to golden tones over time, and it has never been observed producing fruiting bodies. It grows on the bark and decaying wood of conifers in very humid, old-growth forests and has a scattered distribution in northwestern North America, central Norway, and Austria....read more on Wikipedia.