Herpothallon confusum
Herpothallon confusum is a little-known species of corticolous, crustose lichen in the family Arthoniaceae. Found in Venezuela, it was formally described as new to science in 2009 by the lichenologist Göran Thor. It contains confluentic acid and 2'-O-methylevernic acid as major lichen products, evernic acid as a minor metabolite, and trace amounts of chiodectonic acid. The lichen is only known from a couple of documented collections made in lowland rainforests.