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Lichen Diversity of Crustose Caliciaceae and Physciaceae from Alentejo, the Azores and Madeira (Portugal) Including the New Amandinea Madeirensis

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Lichen Diversity of Crustose Caliciaceae and Physciaceae from Alentejo, the Azores and Madeira (Portugal) Including the New Amandinea Madeirensis 420 Herzogia 33 (2), 2020: 420 – 431 Lichen diversity of crustose Caliciaceae and Physciaceae from Alentejo, the Azores and Madeira (Portugal) including the new Amandinea madeirensis Pieter P. G. van den Boom*, John A. Elix & Mireia Giralt Abstract: 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 as- cospores. 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 prov- ince. An additional record of the rare species Buellia indissimilis, hitherto known only from two localities (including the type) in northern Portugal, is included. Zusammenfassung: van den Boom, P. P. G., Elix, J. A. & Giralt, M. 2020. Flechtendiversität krustiger Caliciaceae und Physciaceae von Alentejo, den Azoren und Madeira (Portugal), mit der neuen Amandinea madeirensis. – Herzogia 33: 420 – 431. Die Untersuchung krustiger Caliciaceae und Physciaceae aus Portugal (Alentejo, Madeira und Azoren) erbrachte die neue rindenbewohnende Art Amandinea madeirensis, charakterisiert durch 16-sporige Asci und kleine Ascosporen vom Physconia-Typ. Die neue Art wird mit den anderen bekannten polysporen rindenbewohnenden Arten von Buellia s. l. verglichen und ein Bestimmungsschlüssel für diese Arten geliefert. Ferner werden Angaben zu weiteren 49 Arten gemacht, von denen Amandinea polyspora, Rinodina teichophila und der lichenicole Pilz Wernerella maheui neu für Portugal sind. Die folgenden Arten sind neu für die jeweiligen Regionen: Buellia mediterranea und B. caloplacivora sind neu für die Azoren, Buellia uberiuscula und Rinodina guzzinii sind neu für Madeira und die meisten Funde aus Alentejo sind neu für diese Provinz. Ein weiterer Fund der seltenen Art Buellia indissimilis wurde getätigt, die bisher nur von zwei Lokalitäten (einschließlich der Typuslokalität) aus Nordportugal bekannt war. Key words: Buellia, Rinodina, polyspored asci, Wernerella, lichens of Atlantic archipeligos. Introduction Over several years (1995, 1997, 2003, 2012, 2013, 2015 and 2019), the first author and his wife visited different regions of Portugal (Alentejo, Azores and Madeira) with the aim of collecting lichens and lichenicolous fungi growing on various substrates in lowland, coastal and upland areas (Fig. 1). The Atlantic archipelagos of the Azores, Madeira, Canary Islands * corresponding author.
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