Karunaratne, V.2015-03-122015-03-121999Ceylon Journal of Science (Physical Sciences), 6(1):p.13-28https://dl.nsf.gov.lk/handle/1/17912ChemistryLichensLight screeningChemical witheringAnti-herbivore defenseAllergic activityDyesPerfumesTaxonomySecondary metabolitesBiochemistryLichen substances:biochemistry, ecological role and economic usesArticleRG/69/C/004FR 1173