Micarea sipmanii

Micarea sipmanii is a rare species of corticolous (bark-dwelling) lichen in the family Pilocarpaceae. It was described as a new species in 2009 by the lichenologists Emmanuël Sérusiaux and Brian John Coppins. The species epithet honours Dutch lichenologist Harrie Sipman. The type specimen was collected by the first author from the Riviere duy Grand Carbet, (Basse-Terre, Guadeloupe), where it was growing in a wet forest. It is known to occur only at the type locality, despite searches for it on other parts of the island. Its primary morphological characteristics is its arbuscular (i.e., shaped like or resembling a small tree or shrub), which the authors describe as "spectacular".