Dictyonema irrigatum

About

Dictyonema irrigatum is a species of basidiolichen in the family Hygrophoraceae. It was originally described as a new species in 1860 by Miles Joseph Berkeley and Moses Ashley Curtis, who classified it as a member of the fungal genus Corticium. In their Latin description, Berkeley and Curtis characterized the species as having a thin, reflexed cap with a wrinkled-tomentose (woolly) surface and a smooth, cream-coloured hymenium. They noted that it formed dense patches on rocks and recorded the type locality as Hong Kong. Robert Lücking transferred the species to the genus Dictyonema in 2013.

Summary from Wikipedia