Table 1. Seven Romanian lichen species used in this study.

Collection No.	Family	Lichen species	Known lichen substances	Reference
RO11025	Parmeliaceae	Alectoria samentosa	(-)-Usnic acid, Physodic acid, 8’-O-ethyl-P-alectoronic acid, Alectosarmentin	[13]
RO11045	Parmeliaceae	Flavocetraria nivalis	(±)- Usnic acid, Isousnic acid, Divaricatic acid, p-Hydroxybenzoic acid, Vanillic acid	[14–17]
RO11084	Parmeliaceae	Alectoria ochroleuca	Diffractaic acid, (-)-Usnic acid, Isousnic acid, Friedelin, Barbatic acid	[16, 18]
RO11111	Parmeliaceae	Bryoria capillaris	Alectorialic acid, Barbatolic acid	[19]
RO11166	Parmeliaceae	Hypogymnia physodes	Atronorin, Physodalic acid, Protocetraric acid, Physodic acid	[18, 19]
RO11176	Parmeliaceae	Usnea florida	(+)-Usnic acid, Barbatic acid, Salazinic acid, Norstic acid, β-Orcinol depsidones, (±)-Thamnolic acid, Stictic acid	[18, 20]
RO11209	Parmeliaceae	Evernia divaricata	Divaricatic acid	[19]