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Published August 4, 2021 | Version v1
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FIGURES 64–71 in Morphology of Australoneis gen. nov. and A. frenguelliae comb. nov. (Achnanthales, Bacillariophyta) from the Antarctic Peninsula

Creators

  • 1. División Ficología "Dr. Sebastián A. Guarrera", Facultad de Ciencias Naturales y Museo, Universidad Nacional de La Plata, Paseo del Bosque s/n, B1900FWA, La Plata, Argentina. & guerrerro@fcnym.unlp.edu.ar; https://orcid.org/0000-0002-4733-2753
  • 2. PSL Research University: CNRS-UPVD-EPHE, USR3278 CRIOBE, Perpignan, France. & Laboratoire d'Excellence 'CORAIL', University of Perpignan, Perpignan, France.
  • 3. Departamento de Ciencias Básicas, Universidad Nacional de Luján, Ruta 5 y Av. Constitución, CP 6700, Luján, Buenos Aires, Argentina.
  • 4. Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research, Am Handelshaven 12, 27570, Bremerhaven, Germany. & katharina.zacher@web.de; https://orcid.org/0000-0001-8897-1255
  • 5. Departamento de Biología Costera, Instituto Antártico Argentino, Dirección Nacional del Antártico, 25 de Mayo 1143, CP 1650, San Martin, Buenos Aires, Argentina. & Museo Argentino de Ciencias Naturales "B. Rivadavia", Av. A. Gallardo 470, C1405DJR, Buenos Aires, Argentina.
  • 6. Departamento de Ciencias Básicas, Universidad Nacional de Luján, Ruta 5 y Av. Constitución, CP 6700, Luján, Buenos Aires, Argentina. & Departamento de Biología Costera, Instituto Antártico Argentino, Dirección Nacional del Antártico, 25 de Mayo 1143, CP 1650, San Martin, Buenos Aires, Argentina.

Description

FIGURES 64–71. SEM images of Australoneis frenguelliae comb. nov. 64–65, 67, 69 from sample LPC 15910 (untreated); 66, 70–71 from sample LPC 15908 (treated); 68 from sample LPC 15911 (untreated). RV internal views. 64. Valve with partially broken RVVC, open at one pole (arrow). 66. RV showing raised axial structures and marginal virgae. 68. Tilted valve showing flat virgae at mid-valve and more raised marginal virgae, more prominent towards the margin (arrows). 65. Detail of raised axial structure and marginal virgae. Note undulated RVVC with fimbria-like undulations attached to the virgae (arrowheads) and a second, flat copula (arrow). 67. Detail of valve margin showing broken, hollow RVVC (arrowhead) with "fimbriae" attached to the raised virgae (arrow). 69. Round areolae occluded by hymen perforated by radial slits. 70. Detail of the valve apex showing distal raphe ending with prominent helictoglossa. 71. Detail of the prominent central nodule showing proximal raphe endings bent in opposite directions. Scale bars: 200 nm (Fig. 69), 1 µm (Figs 65, 67, 70–71), 5 µm (Figs 64, 66, 68).

Notes

Published as part of Guerrero, José M., Riaux-Gobin, Catherine, Debandi, Juan I., Zacher, Katharina, Quartino, Maria Liliana & Campana, Gabriela L., 2021, Morphology of Australoneis gen. nov. and A. frenguelliae comb. nov. (Achnanthales, Bacillariophyta) from the Antarctic Peninsula, pp. 81-98 in Phytotaxa 513 (2) on page 88, DOI: 10.11646/phytotaxa.513.2.1, http://zenodo.org/record/5307991

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Is cited by
Taxonomic treatment: http://treatment.plazi.org/id/038587E6FFE112608CFF3386749D49AF (URL)
Is part of
Journal article: 10.11646/phytotaxa.513.2.1 (DOI)
Journal article: urn:lsid:plazi.org:pub:FFBCFF9EFFED126E8C7730367057481B (LSID)
Journal article: http://publication.plazi.org/id/FFBCFF9EFFED126E8C7730367057481B (URL)
Journal article: https://zenodo.org/record/5307991 (URL)