(Rubiaceae, Rubieae), a new species from Lefkada (Ionian Islands, Greece) and its ecological position.
Walter Gutermann, Tae-Soo Jang, Arndt Kästner, David Prehsler, Dieter Reich, Andreas Berger, Ruth Flatscher, Christian Gilli, Markus Hofbauer, Margarita Lachmayer, Ruth Sander, Michaela Sonnleitner, Ladislav Mucina
Tae-Soo Jang: Division of Systematic and Evolutionary Botany, Department of Botany and Biodiversity Research, University of Vienna, Rennweg 14, Vienna, 1030, Austria. ORCID
David Prehsler: Division of Systematic and Evolutionary Botany, Department of Botany and Biodiversity Research, University of Vienna, Rennweg 14, Vienna, 1030, Austria. ORCID
Dieter Reich: Division of Systematic and Evolutionary Botany, Department of Botany and Biodiversity Research, University of Vienna, Rennweg 14, Vienna, 1030, Austria. ORCID
Andreas Berger: Division of Systematic and Evolutionary Botany, Department of Botany and Biodiversity Research, University of Vienna, Rennweg 14, Vienna, 1030, Austria. ORCID
Ruth Flatscher: Division of Systematic and Evolutionary Botany, Department of Botany and Biodiversity Research, University of Vienna, Rennweg 14, Vienna, 1030, Austria.
Christian Gilli: Division of Systematic and Evolutionary Botany, Department of Botany and Biodiversity Research, University of Vienna, Rennweg 14, Vienna, 1030, Austria. ORCID
Markus Hofbauer: Division of Systematic and Evolutionary Botany, Department of Botany and Biodiversity Research, University of Vienna, Rennweg 14, Vienna, 1030, Austria. ORCID
Margarita Lachmayer: Division of Systematic and Evolutionary Botany, Department of Botany and Biodiversity Research, University of Vienna, Rennweg 14, Vienna, 1030, Austria. ORCID
Ruth Sander: Division of Systematic and Evolutionary Botany, Department of Botany and Biodiversity Research, University of Vienna, Rennweg 14, Vienna, 1030, Austria. ORCID
Michaela Sonnleitner: Core Facility Botanical Garden, University of Vienna, Rennweg 14, Vienna, 1030, Austria. ORCID
Ladislav Mucina: Department of Botany, Natural History Museum Vienna, Burgring 7, Vienna, 1010, Austria. ORCID
The new species, (Rubiaceae, Rubieae), a narrow endemic of the white cliffs of Lefkátas on the southwest coast of Lefkada (Greece) is described and illustrated and an IUCN assessment is presented. Vegetation relevés were performed at the single known locality, limestone cliffs facing the sea and revealed a new association, the -. The chromosome number of was determined as 2 = 4 = 44, being the single tetraploid species in the genus to date. The species also differs markedly morphologically from its morphologically closest relatives, two Greek steno-endemic oreophytes, and by the following characters: densely setose mericarps and corolla, tetraploidy and by its distribution. An identification key for the Greek species of is provided. constitutes the westernmost outpost of a group of Greek steno-endemics, highlighting the importance of coastal habitats and their protection as refugia for poorly competitive chamaephytes.
