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Botanica Marina

Editor-in-Chief: Dring, Matthew J.

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1437-4323
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Volume 56, Issue 2 (Apr 2013)

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Vegetative and reproductive morphology of Polysiphonia tripinnata (Rhodomelaceae, Rhodophyta): a new record from the European Atlantic coast

Pilar Díaz-Tapia
  • Corresponding author
  • Faculty of Sciences, Coastal Biology Research Group, University of A Coruña, Campus da Zapateira s/n 15071, A Coruña, Spain
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  • Other articles by this author:
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/ Ignacio Bárbara
  • Faculty of Sciences, Coastal Biology Research Group, University of A Coruña, Campus da Zapateira s/n 15071, A Coruña, Spain
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
/ Estíbaliz Berecibar
  • Marbis program-EMEPC (Task Group for the Extension of the Continental Shelf), 2770-047 Paço de Arcos, Portugal
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Published Online: 2013-02-11 | DOI: https://doi.org/10.1515/bot-2012-0205

Abstract

Polysiphonia tripinnata, a member of the Rhodomelaceae originally described from the Mediterranean Sea, is newly recorded off the European Atlantic coast. It was collected mostly from sand-covered rocks between the low intertidal zone and the upper subtidal zone of 18 sites from the Iberian Peninsula. Most locations were from the southern Iberian Peninsula; nevertheless, it was also found at three sites on the northern coast (Galicia and Basque Country). In this work, the vegetative and reproductive morphologies of P. tripinnata are described and for the first time a detailed description of female structures is provided. Polysiphonia tripinnata is distinguished from its congeners by its decumbent robust thalli attached to the substratum by abundant rhizoids cut off from the pericentral cells; axes are ecorticate with (14–) 17–19 (–20) pericentral cells; branches of indeterminate and/or determinate growth are alternately arranged and form in the axils of trichoblasts, which are borne on every segment; carpogonial branches are four-celled, cystocarps are globose; tetrasporangia are formed in spiral series. The type material of P. tripinnata has been examined and a lectotype is designated for the species. Differences between P. tripinnata and similar species are discussed. Moreover, COI-5P sequences of P. tripinnata as well as Polysiphonia nigra and Boergeseniella spp. are provided to allow subsequent assignment to these entities using the DNA barcode tool.

Keywords: COI-5P; Iberian Peninsula; morphology; new record; Polysiphonia tripinnata

About the article

Corresponding author: Pilar Díaz-Tapia, Faculty of Sciences, Coastal Biology Research Group, University of A Coruña, Campus da Zapateira s/n 15071, A Coruña, Spain


Received: 2012-09-19

Accepted: 2013-01-11

Published Online: 2013-02-11

Published in Print: 2013-04-01


Citation Information: Botanica Marina, ISSN (Online) 1437-4323, ISSN (Print) 0006-8055, DOI: https://doi.org/10.1515/bot-2012-0205.

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©2013 by Walter de Gruyter Berlin Boston. Copyright Clearance Center

Citing Articles

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[1]
Pilar Díaz-Tapia, Lynne McIvor, D. Wilson Freshwater, Heroen Verbruggen, Michael J. Wynne, and Christine A. Maggs
European Journal of Phycology, 2017, Volume 52, Number 1, Page 1
[2]
V. García-Redondo, I. Bárbara, and P. Díaz-Tapia
Thalassas: An International Journal of Marine Sciences, 2016, Volume 32, Number 2, Page 87
[4]
V. Peña, I. Bárbara, J. Grall, C. A. Maggs, and J. M. Hall-Spencer
Marine Biodiversity, 2014, Volume 44, Number 4, Page 533
[5]
Pilar Díaz-Tapia and Ignacio Bárbara
Cryptogamie, Algologie, 2013, Volume 34, Number 4, Page 325

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