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Phymatolithopsis acervata comb. nov., and P. roseola sp. nov. (Hapalidiales, Rhodophyta) from South Africa with a comment on infraordinal classification

  • Gavin W. Maneveldt

    Gavin W. Maneveldt is a Professor of Marine Biology at the University of the Western Cape, South Africa. Initially interested in pursuing research into marine ecology, the lack of suitable names for coralline algae quickly changed that focus. Since obtaining his PhD in 2006, Gavin’s interest shifted almost entirely to taxonomy and systematics of non-geniculate corallines. He collaborates extensively, lending his unique expertise in histology and morpho-anatomy to the understanding of the diversity of the non-geniculate coralline red algae.

     ORCID logo EMAIL logo     , So Young Jeong

    So Young Jeong is a young, passionate phycologist, with a keen interest in the diverse aspects of biology. She obtained her PhD from Chosun University, Korea in 2018 and was a post-doc with Dr Tae Oh Cho at Chosun University, as wells as Dr Guillermo Diaz-Pulido at Griffith University, Australia. With dedication to scientific exploration, her research primarily centres around the taxonomy and phylogeny of macroalgae, with a particular focus on the non-geniculate coralline red algae.

     ORCID logo     , Jeffery R. Hughey

    Jeffery R. Hughey has been an instructor of biology since 2004 at Hartnell College in Salinas, California, USA. He received his PhD in 2001 under Dr. Max Hommersand at the University of North Carolina at Chapel Hill, North Carolina, USA. His research focuses on using genomics and PCR methods to analyze algal type specimens to investigate systematic questions. He also monitors, discovers, and identifies marine algae from California.

     ORCID logo     and Paul W. Gabrielson

    Paul W. Gabrielson is an algal systematist. He obtained his PhD at the University of North Carolina, Chapel Hill with Max Hommersand and was a post-doc with Gerald T. Kraft and the late Robert F. Scagel. He retooled from morpho-anatomy to DNA sequencing while teaching at a small, liberal arts college, before returning to UNC, Chapel Hill. He collaborates with phycologists worldwide sequencing contemporary field-collected specimens, as well as type specimens of seaweeds from the eighteenth, nineteenth and early twentieth centuries.

     ORCID logo
Published/Copyright: April 29, 2024
Botanica Marina
From the journal Botanica Marina Volume 67 Issue 3

Abstract

Phymatolithon acervatum is an encrusting, non-geniculate coralline alga from South Africa. While morpho-anatomical details of the species are well documented, no genetic analyses have been performed on P. acervatum. Here, we analyzed rbcL and psbA gene sequences, and they showed that two species were passing under the name Phymatolithon acervatum in South Africa. A partial rbcL sequence from the lectotype of Lithothamnion acervatum, basionym of P. acervatum, showed to which species the specific epithet applies, and furthermore that both species belong in Phymatolithopsis. We transfer Phymatolithon acervatum to Phymatolithopsis, as Phymatolithopsis acervata comb. nov., and propose Phymatolithopsis roseola sp. nov. These species overlap in morpho-anatomy, habitat and distribution and can only be distinguished based on DNA sequences. Previous misinterpretations of conceptacle development are corrected for species of Phymatolithopsis. The main character used to define the family Mesophyllumaceae is shown to have arisen several times in independent lineages in the order Hapalidiales. At present, only one family, Hapalidiaceae, thus merits recognition in the Hapalidiales.

Keywords: biogeography; cryptic diversity; morpho-anatomy; psbA; rbcL
Corresponding author: Gavin W. Maneveldt, Department of Biodiversity and Conservation Biology, University of the Western Cape, P. Bag X17, Bellville 7535, South Africa, E-mail:

Funding source: South African National Botanical Institute (SANBI)

Funding source: South African National Research Foundation (NRF)

Funding source: Department of Biodiversity and Conservation Biology at the University of the Western Cape

About the authors

Gavin W. Maneveldt

Gavin W. Maneveldt is a Professor of Marine Biology at the University of the Western Cape, South Africa. Initially interested in pursuing research into marine ecology, the lack of suitable names for coralline algae quickly changed that focus. Since obtaining his PhD in 2006, Gavin’s interest shifted almost entirely to taxonomy and systematics of non-geniculate corallines. He collaborates extensively, lending his unique expertise in histology and morpho-anatomy to the understanding of the diversity of the non-geniculate coralline red algae.

So Young Jeong

So Young Jeong is a young, passionate phycologist, with a keen interest in the diverse aspects of biology. She obtained her PhD from Chosun University, Korea in 2018 and was a post-doc with Dr Tae Oh Cho at Chosun University, as wells as Dr Guillermo Diaz-Pulido at Griffith University, Australia. With dedication to scientific exploration, her research primarily centres around the taxonomy and phylogeny of macroalgae, with a particular focus on the non-geniculate coralline red algae.

Jeffery R. Hughey

Jeffery R. Hughey has been an instructor of biology since 2004 at Hartnell College in Salinas, California, USA. He received his PhD in 2001 under Dr. Max Hommersand at the University of North Carolina at Chapel Hill, North Carolina, USA. His research focuses on using genomics and PCR methods to analyze algal type specimens to investigate systematic questions. He also monitors, discovers, and identifies marine algae from California.

Paul W. Gabrielson

Paul W. Gabrielson is an algal systematist. He obtained his PhD at the University of North Carolina, Chapel Hill with Max Hommersand and was a post-doc with Gerald T. Kraft and the late Robert F. Scagel. He retooled from morpho-anatomy to DNA sequencing while teaching at a small, liberal arts college, before returning to UNC, Chapel Hill. He collaborates with phycologists worldwide sequencing contemporary field-collected specimens, as well as type specimens of seaweeds from the eighteenth, nineteenth and early twentieth centuries.

Acknowledgments

We are most grateful to K. Hassel and T. Prestø at TRH for loaning type material. Wilson Freshwater, DNA Analysis Core Facility, University of North Carolina, Wilmington provided sequencing support, and Todd Vision provided research space and equipment to PWG. T.O. Cho and J.G. Lee are acknowledged for collecting additional material in South Africa.

  1. Research ethics: All procedures are/were in accordance with the respective national laws.

  2. Author contributions: All authors have contributed equally to the research being presented. The authors accept responsibility for the entire content of this submitted manuscript and its approved submission.

  3. Competing interests: The authors declare no conflicts of interest regarding this article.

  4. Research funding: We thank the Department of Biodiversity and Conservation Biology at the University of the Western Cape for providing funding and research equipment. The South African National Research Foundation (NRF) and the South African National Botanical Institute (SANBI) through its Foundational Biodiversity Information (FBIP) and SEAKEYS programmes are thanked for research funding and travel awards to GWM. SYJ acknowledges research support from the National Research Foundation of Korea (NRF), the Korean Ministry of Education (2021R1I1A2059577), the Korean Ministry of Ocean and Fisheries (Marine Biotics Project, 20210469), and the Marine Fishery Bio-resources Center of the National Marine Biodiversity Institute of Korea. PWG acknowledges a private family trust for research support.

  5. Data availability: The raw data can be obtained on request from the corresponding author.

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Supplementary Material

This article contains supplementary material (https://doi.org/10.1515/bot-2023-0109).

Received: 2023-12-19
Accepted: 2024-03-12
Published Online: 2024-04-29
Published in Print: 2024-06-25

© 2024 Walter de Gruyter GmbH, Berlin/Boston

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  2. In this issue
  3. Obituary
  4. A life for science and seaweeds: Klaus-Otto Lüning (1941–2023)
  5. Review
  6. Chemical ecology of plankton parasitism in algae
  7. Physiology and Ecology
  8. Saccharina sporophytes settling on kelp cultivation rafts come from wild intertidal populations and not from the farmed cultivars
  9. Feasibility of ex-situ recruitment and outplanting of Gongolaria nodicaulis (Fucales, Phaeophyceae) for restoration of warm temperate marine forests in Atlantic Morocco
  10. Taxonomy/Phylogeny and Biogeography
  11. Phymatolithopsis acervata comb. nov., and P. roseola sp. nov. (Hapalidiales, Rhodophyta) from South Africa with a comment on infraordinal classification
  12. A new species of marine algae from the Mexican Atlantic based on morphology and molecular data: Gelidium rodrigueziae sp. nov. (Gelidiaceae, Rhodophyta)
  13. Occurrence of Dictyosphaeria (Cladophorales, Chlorophyta) species on the Brazilian coast and oceanic islands, based on morphological and molecular data
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https://doi.org/10.1515/bot-2023-0109
Keywords for this article
biogeography; cryptic diversity; morpho-anatomy; psbA; rbcL

Articles in the same Issue

  1. Frontmatter
  2. In this issue
  3. Obituary
  4. A life for science and seaweeds: Klaus-Otto Lüning (1941–2023)
  5. Review
  6. Chemical ecology of plankton parasitism in algae
  7. Physiology and Ecology
  8. Saccharina sporophytes settling on kelp cultivation rafts come from wild intertidal populations and not from the farmed cultivars
  9. Feasibility of ex-situ recruitment and outplanting of Gongolaria nodicaulis (Fucales, Phaeophyceae) for restoration of warm temperate marine forests in Atlantic Morocco
  10. Taxonomy/Phylogeny and Biogeography
  11. Phymatolithopsis acervata comb. nov., and P. roseola sp. nov. (Hapalidiales, Rhodophyta) from South Africa with a comment on infraordinal classification
  12. A new species of marine algae from the Mexican Atlantic based on morphology and molecular data: Gelidium rodrigueziae sp. nov. (Gelidiaceae, Rhodophyta)
  13. Occurrence of Dictyosphaeria (Cladophorales, Chlorophyta) species on the Brazilian coast and oceanic islands, based on morphological and molecular data
  14. New morphological data for two rare species of sand-dwelling marine dinoflagellates, Amphidiniella sedentaria and Pachena cf. leibnizii
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