An assessment of the taxonomic status of the Mediterranean endemic genus Acrodiscus Zanardini (Halymeniales, Rhodophyta)

  • Antonio Manghisi Institut de Systématique, Évolution, Biodiversité, ISYEB - UMR 7205 - CNRS, MNHN, UPMC, EPHE, Muséum national d'Histoire naturelle, Sorbonne Universités, 57 rue Cuvier, CP 39, 75005 Paris
  • Line Le Gall Institut de Systématique, Évolution, Biodiversité, ISYEB - UMR 7205 - CNRS, MNHN, UPMC, EPHE, Muséum national d'Histoire naturelle, Sorbonne Universités, 57 rue Cuvier, CP 39, 75005 Paris
  • Céline Bonillo Institut de Systématique, Évolution, Biodiversité, ISYEB - UMR 7205 - CNRS, MNHN, UPMC, EPHE, Muséum national d'Histoire naturelle, Sorbonne Universités, 57 rue Cuvier, CP 39, 75005 Paris
  • Gaetano M. Gargiulo Dept. of Chemical, Biological, Pharmaceutical and Environmental Sciences - Botany, University of Messina, Salita Sperone, 31, 98166 Messina
  • M. Antonia Ribeira Laboratori de Botànica, Facultat de Farmàcia, Universitat de Barcelona, Av. Joan XXIII s/n, 08028 Barcelona
  • Marina Morabito Dept. of Chemical, Biological, Pharmaceutical and Environmental Sciences - Botany, University of Messina, Salita Sperone, 31, 98166 Messina
DOI: https://doi.org/10.5852/ejt.2017.267
Keywords: DNA barcoding, Mediterranean endemic, lectotype, morphology, phylogeny, Acrodiscus

Abstract

Acrodiscus Zanardini is a poorly known monotypic endemic Mediterranean genus based on A. vidovichii (Menegh.) Zanardini. Rarely reported, its reproductive structures have remained undocumented, leaving its exact taxonomic position uncertain. Solely on the basis of its vegetative structure, Zanardini provisionally placed it in the family Cryptonemiaceae of the order Cryptonemiales (currently the Halymeniaceae of the Halymeniales), although he was uncertain as to whether the new genus actually belonged to that family or should instead be included in the Gigartinaceae of the Gigartinales (where Meneghini had originally placed it). In the present study we have extensively sampled A. vidovichii and documented its vegetative and tetrasporangial features. As well, we provide molecular-sequence data (COI-5P, rbcL, LSU) that indicate its phylogenetic affinities. We confirm Acrodiscus as a member of the Halymeniaceae and its status as an independent genus. Searches of several institutional herbaria have allowed us to locate and lectotypify Meneghini’s Chondrus? vidovichii by the discovery of his original material now held at the Herbarium Horti Pisani (Pisa, Italy).

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Published
2017-01-31
How to Cite
Manghisi, A., Le Gall, L., Bonillo, C., Gargiulo, G. M., Ribeira, M. A., & Morabito, M. (2017). An assessment of the taxonomic status of the Mediterranean endemic genus Acrodiscus Zanardini (Halymeniales, Rhodophyta). European Journal of Taxonomy, (267). https://doi.org/10.5852/ejt.2017.267
Issue
No. 267 (2017): An assessment of the taxonomic status of the Mediterranean endemic genus Acrodiscus Zanardini (Halymeniales, Rhodophyta)
Section
Botany
Copyright (c) 2017 Antonio Manghisi, Line Le Gall, Céline Bonillo, Gaetano M. Gargiulo, M. Antonia Ribeira, Marina Morabito

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