Table 4 Cytotoxicity of X. conspersa extracts and selected bioactive compounds

Atraric acid

76.21 ± 4.39

62.07 ± 8.98

1.23

65.93 ± 9.74

1.16

47.68 ± 2.71^a

1.6

Stictic acid

34.93 ± 5.21

9.84 ± 1.38 ^a

3.55

9.01 ± 1.22^a

3.88

27.15 ± 2.92

1.29

Usnic acid

49.14 ± 6.91

9.29 ± 2.64^a

5.29

83.39 ± 16.1

0.59

34.48 ± 8.85

1.43

X. conspersa

hexane extract

113.4 ± 11.39

15.41 ± 3.01^a

7.36

138.7 ± 25.03

0.82

51.84 ± 15.38^a

2.19

X. conspersa

methanolic extract

205.25 ± 20.6

69.53 ± 10.07^a

2.95

234.27 ± 23.24

0.88

34.71 ± 1.96^a

5.91