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Published October 2, 2018 | Version v1
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FIGURES 13–20. Cocconeis sawensis from Brazil. Raphe valves. 13–18. SEM. 19, 20. TEM. 13, 15 in Additional morphological features of the epiphytic diatom Cocconeis sawensis Al-Handal & Riaux-Gobin (Cocconeidaceae, Bacillariophyta) from a coastal lagoon, Southern Brazil

Authors/Creators

  • 1. Programa de Pós-Graduação em Botânica, Universidade Federal do Rio Grande do Sul, Avenida Bento Gonçalves nº 9500, Campus do Vale, CEP 91501-970, Porto Alegre, RS, Brazil
  • 2. Programa de Pós-Graduação em Botânica, Universidade Federal do Rio Grande do Sul, Avenida Bento Gonçalves nº 9500, Campus do Vale, CEP 91501-970, Porto Alegre, RS, Brazil & Fundação Zoobotânica do Rio Grande do Sul, Museu de Ciências Naturais, Rua Dr. Salvador França, 1427, Jardim Botânico, CEP 90690-000, Porto Alegre, RS, Brazil.
  • 3. Department of Biological and Environmental Sciences, University of Gothenburgm Sweden

Description

FIGURES 13–20. Cocconeis sawensis from Brazil. Raphe valves. 13–18. SEM. 19, 20. TEM. 13, 15. External view of the valve. 14. Internal view of the valve showing an irregular and raised marginal rim. 16, 17. Detail of the internal valves ends. Note raphe lying in a very narrow raised axial area and distal raphe ending a small helictoglossae. 18. Detail of the central area round and slightly raised with raphe endings deflected in opposite directions. 19. Valve. 20. Detail of hymenes occluding areolae with radial perforations. Scale bars = 200 nm (Fig. 20), 1 μm (Figs 16–18), 2 μm (Figs 13, 14, 15, 19).

Notes

Published as part of Donadel, Letícia, Torgan, Lezilda Carvalho & Al-Handal, Adil Y., 2018, Additional morphological features of the epiphytic diatom Cocconeis sawensis Al-Handal & Riaux-Gobin (Cocconeidaceae, Bacillariophyta) from a coastal lagoon, Southern Brazil, pp. 217-229 in Phytotaxa 371 (3) on page 221, DOI: 10.11646/phytotaxa.371.3.5, http://zenodo.org/record/13728120

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Journal article: 10.11646/phytotaxa.371.3.5 (DOI)
Journal article: urn:lsid:plazi.org:pub:622E160B300EFF98FFF1FFEAFFDEF30A (LSID)
Journal article: https://zenodo.org/record/13728120 (URL)