1987 Volume 62 Pages 331-338
The lichens Dirinaria aegialita, D. applanata, D. confusa var. saxicola, D. consimilis, D. leopoldii, Pyxine berteriana, P. caesiopruinosa, and P. pungens have been analysed for their secondary products. Lichexanthone, atranorin and triterpenoids are the main metabolites.