Festuca silana (Poaceae), a new species from the Sila plateau in Italy

Authors: Pallanza, Mattia Country: Italy DOI: 10.3897/phytokeys.255.146942 Published: Jan. 1, 2025 Source: PhytoKeys OpenAlex: View in OpenAlex

Collection: Pensoft Publishers

Keywords: Calabria · Topics: Botany and Plant Ecology Studies, Plant Taxonomy and Phylogenetics, Mediterranean and Iberian flora and fauna

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A new hexaploid species of fine-leaved fescue from Festuca sect. Festuca (Festuca silana Ardenghi, Pallanza & Foggi, sp. nov.) endemic to the Sila plateau is described. The new taxon shows morphological affinities with species of the F. marginata group from which it can be distinguished by higher ploidy, ecology, and leaf cross section anatomy. ddRADseq data suggests F. silana could be a local hexaploid descendant/derivate of the widespread diploid F. marginata. Its distribution is restricted to several localities in the Sila highlands of the Southern Apennines, Italy.

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