Sporopodium isidiatum

Sporopodium isidiatum is a species of lichen-forming fungus in the family Ectolechiaceae. It grows as small, rounded, pale green to grey patches that are densely covered with tiny upright finger-like outgrowths (isidia), on living leaves in tropical montane (mountain) forests and on bark in lowland areas. It is distinguished by large, dark, hood-shaped asexual structures, and by a characteristic set of lichen substances, including yellow pigments. It was formally described in 2008 from specimens collected in Papua New Guinea and Sri Lanka. These widely separated records suggest that it may be more widespread in tropical south-east Asia than the current records show....read more on Wikipedia.