Arthonia gregaria
(Weigel) Körb.
HACM 15. Place of collection: Cuba; Guantánamo; Guantánamo; Novaliche (N20°02' W75°11'). Date of collection: May 1930. Associated organism: Plantae indet. (bark). Collector: Hioram, Hno. Identifier: Harris, R.C..