Pulvinodecton

Pulvinodecton is a small genus of lichen-forming fungi in the family Roccellaceae. It comprises two species of corticolous (bark-dwelling) crustose lichens. These lichens are found exclusively in humid tropical rainforests, where they grow on tree bark in shaded locations from sea level to about 400 metres elevation. One species ranges across the Indo-Pacific region while the other is found only in the Seychelles islands. The lichens form thin, greyish crusts on bark that develop distinctive star-shaped...