Phlyctis petraea

Phlyctis petraea, the eggshell rock blaze,^[1] is a species of saxicolous (rock-dwelling) crustose lichen in the family Phlyctidaceae.^[2] Found in eastern North America, it was formally described as a new species in 2017 by Richard Clinton Harris, Zachary Muscavitch, Douglas Ladd, and James Lendemer.^[3] Because of its widespread occurrence throughout eastern North America and its abundant and stable populations, it is considered a species of least concern by the International Union for Conservation of Nature.

Phlyctis petraea
near Augusta, Georgia
Conservation status
Least Concern  (IUCN 3.1)[1]
Scientific classification
Kingdom:	Fungi
Division:	Ascomycota
Class:	Lecanoromycetes
Order:	Gyalectales
Family:	Phlyctidaceae
Genus:	Phlyctis
Species:	P. petraea
Binomial name
Phlyctis petraea R.C.Harris, Musc., Ladd & Lendemer (2017)