Graphis_plumierae
Graphis plumierae
Species of lichen
Graphis plumierae is a species of script lichen in the family Graphidaceae. It was described as new to science in 1915 by Finnish mycologist Edvard Vainio. The type was collected in Gourbeyre, Guadeloupe.[1] In 2016, G. plumierae was reported from Portugal, which was also a new occurrence for Europe.[2]
Graphis plumierae has labia that are white-pruinose. The lirellae (these are ascomata with a long, narrow disc resembling dark squiggly lines), which are immersed in the substrate, have a lateral thalline margin.[3] The lichen contains the secondary compounds norstictic acid, stictic, and salazinic acid. It grows on bark.[3]