Volume 102 of Bibliotheca Lichenologica presents a revision of the corticolous paleotropical lichen species of Opegrapha (Roccellaceae, Arthoniales). Forty-five species are accepted, of which eight are new to science: Opegrapha bisokeana sp. nova, O. borbonica sp. nova, O. deblockiae sp. nova, O. dekeselii sp. nova, O. maldiveana sp. nova, O. nyungweana sp. nova, O. subdimidiata sp. nova and O. ugandensis sp. nova. The volume also provides a key to all species of lichenized and corticolous Opegrapha from the Paleotropics, that is Africa and Asia.weiterlesen