A checklist of the bryophytes of Andorra

Abstract

A checklist of 137 liverwort and 445 moss species is established for Andorra based on a review of the literature and a long-term floristic survey. Five moss species, Barbula amplexifolia, Ditrichum zonatum, Grimmia donniana, Pohlia bulbifera, and P. lutescens, are new to the Iberian Peninsula. Another 7 liverwort and 156 moss species are new to Andorra. For each species, the distribution at the scale of 1 km² and altitudinal range are documented, resulting in an improved assessment of the frequency and distribution of 101 moss species previously reported from a single record. Haplomitrium hookeri and Scapania verrucosa, which are the two Regionally Extinct species of the Spanish Red List of liverworts, occur in Andorra, which hosts between 23 and 37% of the species listed as Critically Rare, Endangered, or Vulnerable in the Spanish Red List of bryophytes. Therefore, it appears that Andorra is a key area for the conservation of the high-altitude flora of the Iberian Peninsula.

Keywords:

• Alpine flora
• Liverworts
• Mosses
• Pyrenees

Acknowledgements

Many thanks are due to M. and O. Sotiaux for their companionship in the field and their assistance with the manuscript, to M. Infante for her assistance with the identification of Moerckia flotoviana, and to two referees, and N. Hodgetts and E. Kungu for their constructive comments on the manuscript.

ORCID

Andre Sotiaux http://orcid.org/0000-0003-0533-3632

Taxonomic Additions and Changes: Nil.