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Issue: Vol. 661 No. 3: 1 Aug. 2024
Type: Article
Published: 2024-08-01
DOI: 10.11646/phytotaxa.661.3.3
Page range: 253-266
Abstract views: 231
PDF downloaded: 13

Centranthus pontecorvi (Valerianaceae) a new species from Sardinia

Department of Life and Environmental Science, Centre for Conservation of Biodiversity (CCB), University of Cagliari, V.le Sant’Ignazio da Laconi, 11-13, 09123 Cagliari, Italy
Department of Biology, Geology and Environmental Science, University of Catania, Via A. Longo 19, 95125 Catania, Italy
Department of Biology, University of Naples Federico II, Via Cinthia, 80126 Naples, Italy, Botanical Garden, University of Naples Federico II, Via Foria 223, 80139 Napoles, Italy
Department of Life and Environmental Science, Centre for Conservation of Biodiversity (CCB), University of Cagliari, V.le Sant’Ignazio da Laconi, 11-13, 09123 Cagliari, Italy
Department of Biology, Geology and Environmental Science, University of Catania, Via A. Longo 19, 95125 Catania, Italy
Centranthus endemic vascular flora Mediterranean Basin section Nervosae Tyrrhenian Islands Eudicots

Abstract

The species of Centranthus (Valerianaceae) belonging to C. sect. Nervosae are investigated. They are currently represented by C. trinervis from southern Corsica and C. amazonum from central-eastern Sardinia. In addition, a new isolated population has been discovered in southwestern Sardinia, which is morphologically and ecologically very differentiated from the other two known species. This population can be treated as new species, named C. pontecorvi, growing on screes constituted by Cambrian metacarbonates, localized in the Sulcitano-Iglesiente biogeographic sector. For each species, a detailed description and a new illustration based on living and herbarium materials are provided. Information on typification, synonymy, phenology, ecology, distribution, conservation status, and a list of examined herbarium specimens is also given. Furthermore, an updated identification key utilising the diagnostic traits of these three species has been elaborated.

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