Reference
Robert Lücking, Othmar Breuss (2012): A new species of Thelotrema, a new combination, Leucodecton isidioides,
and a key to thelotremoid lichens of Macaronesia (lichenised Ascomycota:
Graphidaceae). – Österreichische Zeitschrift für Pilzkunde – 21: 127 - 133.