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Hypotrachyna penduliloba and Remototrachyna pandani, two new species in the hyperdiverse lichen family Parmeliaceae from Réunion in the Mascarene Archipelago

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Abstract

Extensive exploration of lichen diversity in the tiny and remote tropical island of Réunion (Mascarene Archipelago, Indian Ocean) yielded two new species in the hyperdiverse lichen family Parmeliaceae. Morphological, anatomical and chemical characters and molecular inferences from 3 loci (ITS, nuLSU and mtSSU) strongly support their assignment to Hypotrachyna (subgenus Longilobae) and Remototrachyna. Hypotrachyna producta is further assigned to H. subgenus Longilobae and is newly reported for Réunion as well as Remototrachyna costaricensis.

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Acknowledgements

Field studies in Réunion were made possible with the help and advice from the Parc National de La Réunion, especially through the courtesy of Mr. B. Lequette. Field collections were made under collecting permits provided by the National Park authority. One collection of Hypotrachyna penduliloba was made during a field trip to Réunion with N. Magain; his great companionship is acknowledged here. Harrie J. M. Sipman is thanked for arranging the loan of comparative material from B and for providing nomenclatural advice. Both referees contributed to the finalization of the manuscript as their notes and suggestions were very helpful: we thank them very warmly. P.K.D. thanks the Ministerio de Ciencia e Innovación, Spain for financial support (CGL2010-21646/BOS).

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Masson, D., Divakar, P.K. & Sérusiaux, E. Hypotrachyna penduliloba and Remototrachyna pandani, two new species in the hyperdiverse lichen family Parmeliaceae from Réunion in the Mascarene Archipelago. Mycol Progress 14, 22 (2015). https://doi.org/10.1007/s11557-015-1039-x

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