Pilocarpaceae

The Pilocarpaceae are a family of crustose lichens in the order Lecanorales. The species of this family have a cosmopolitan distribution and have been found in a variety of climatic regions. Pilocarpaceae was circumscribed by Alexander Zahlbruckner in Adolf Engler's influential 1905 work Die Natürlichen Pflanzenfamilien. In 2004, the family Micareaceae included the genera; Helocarpon, Micarea, Psilolechia, Roccellinastrum, and Scutula. Then in 2005, molecular phylogeny based on mitochondrial rDNA sequences showed that the genus Helocarpon was not related to the Micareaceae family and the rest of the genus were related to the Pilocarpaceae family and other genera....read more on Wikipedia.