The descriptive text, below the map, is from the Cornish Red Data Book (2009). The map on this web page depicts the organisms distribution and shows the records made pre-2000 and those made since.
Range & Status
A recent revision of European Heterodermia by Prof. Roland Moberg has revealed that all British material of ' H.obscurata' is H. japonica , as is H. propagulifera . Found on mossy tree trunks, short turf and mossy rocks in old/ancient woodland and parkland. Also found, as on the Lizard Peninsula and the Isles of Scilly, on exposed coastal heaths.
I.J. Bennallick, S. Board, C.N. French, P.A. Gainey, C. Neil, R. Parslow, A. Spalding and P.E. Tompsett. eds. 2009. Red Data Book for Cornwall and the Isles of Scilly. 2nd Edition.Croceago Press.
The Cornish Red Data Book Project was led by the Cornwall and Isles of Scilly Federation for Biological Recorders (CISFBR). The full text and species accounts (minus the maps) are available on the CISFBR website.