Amandinea conglomerata

Amandinea conglomerata is a species of crustose lichen in the family Caliciaceae. and found in New South Wales. It is confined to wave-washed sandstone and andesite outcrops along the south-eastern coast of Australia, where its minute black fruit bodies form tight clusters that help to distinguish it from superficially similar species. This maritime specialist grows on hard rock surfaces that are regularly splashed by seawater but dry between tides, sharing its habitat with other salt-tolerant lichens. The species can be distinguished from similar lichens by its oil-filled spore layer and the way its fruiting bodies merge together into cushion-like clusters as they age....read more on Wikipedia.