van den Boom, P. P. G., Elix, J. A. & Giralt, M. 2020. Lichen diversity of crustose Caliciaceae and Physciaceae from Alentejo, the Azores and Madeira (Portugal) including the new Amandinea madeirensis. – Herzogia 33: 420 – 431.

Examination of crustose Caliciaceae and Physciaceae from Portugal (Alentejo, Madeira and the Azores) revealed the new corticolous species, Amandinea madeirensis, characterized by 16-spored asci and small Physconia-type ascospores. The new species is compared with the other known corticolous species of Buellia s. lat. with polyspored asci and a key to these species is provided. Additional information is given for a further 49 species, of which Amandinea polyspora, Rinodina teichophila and the lichenicolous fungus Wernerella maheui are new records for Portugal. The following are new records for the regions studied: Buellia mediterranea and B. caloplacivora are new to the Azores, Buellia uberiuscula and Rinodina guzzinii are new to Madeira, while most records from Alentejo are new for the province. An additional record of the rare species Buellia indissimilis, hitherto known only from two localities (including the type) in northern Portugal, is included.