ORIGINAL ARTICLE
The genus Ramalina (Ascomycota, Lecanoromycetes, Ramalinaceae) from the Scattered Islands (French Southern and Antarctic Lands), with descriptions of three new species
1
UMS 2006 PatriNat (OFB - CNRS - MNHN), Muséum national d’Histoire
naturelle, Maison Buffon, CP41, 36 rue Geoffroy Saint-Hilaire
75005 Paris, France
2
Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de
Rennes) – UMR 6226, 35000 Rennes, France
3
Conservatoire botanique national de Mascarin, 2 rue du Père Georges
97436 Saint-Leu, La Réunion, France
4
Missouri Botanical Garden, Africa & Madagascar Department, 4344
Shaw Blvd., St. Louis, MO 63110, United States of America
5
Institut de Systématique, Évolution et Biodiversité, ISYEB – Muséum
national d’Histoire naturelle, Centre national de la Recherche
scientifique, Sorbonne Université, École pratique des Hautes Études,
Université des Antilles, case postale 39, 57 rue Cuvier, F-75231 Paris
cedex 05 (France)
6
Direction des collections, Muséum national d’Histoire naturelle, CP 39,
57 rue Cuvier, 75231 Cedex 05 Paris, France
Online publication date: 2021-12-31
Publication date: 2021-12-31
Plant and Fungal Systematics 2021; 66(2): 211–224
KEYWORDS
ABSTRACT
A systematic survey of lichens was performed in 2019 in four of the five territories
constituting the French Scattered Islands (Europa Island, Juan de Nova, Glorioso
Islands, and Tromelin) focusing on the genus Ramalina. Species were characterized using
morphological (macroscopic and microscopic) features and an accurate chemical profiling
method based on high-performance liquid chromatography coupled with diode-array
detection and electrospray ionization tandem mass spectrometry (HPLC-DAD-MS). Five
species were found in these territories. Two of them, Ramalina dumeticola and R. ovalis, are
already known. Three species are introduced here as new to science: Ramalina gloriosensis
sp. nov., R. hivertiana sp. nov., and R. marteaui sp. nov. An identification key is provided
for the species found in the area and morphologically closely related taxa.
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