Home › Authors › Lilian Porter 👤 Lilian Porter 3 books Books by Lilian Porter Index of collectors in Knowles Index of collectors in Knowles' The Lichens of Ireland (1929) and Porter's Supplement (1949) with a conspectus of lichen recording in the Irish vice-counties to 1950 1998 Notes on Irish lichens Notes on Irish lichens 1952 The lichens of Ireland The lichens of Ireland 1948