Evaluation of the Antioxidant Capacities and Cytotoxic Effects of Ten Parmeliaceae Lichen Species

Table 2

Values of LD₅₀ for the methanol extracts of the ten studied Parmeliaceae lichens species towards MCF-7 and HepG2 cells in treatments of 24 h.

Lichen species	LD50 (μg/ml) MCF-7	LD50 (μg/ml) HepG2
Bulbothrix setschwanensis	91	92
Flavoparmelia caperata	131	272
Flavoparmelia euplecta	67	67
Flavoparmelia haysomii	212	193
Hypotrachyna cirrhata	281	41
Lethariella canariensis	66	351
Myelochroa irrugans	145	22
Parmelia omphalodes	138	260
Usnea aurantiacoatra	339	151
Usnea contexta	208	54