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Published November 27, 2025 | Version v1
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Planothidium islandicum sp. nov., a new cavum-bearing Planothidium species from the Westfjords, northwestern Iceland (Achnanthaceae, Bacillariophyceae)

Authors/Creators

  • 1. Meise Botanic Garden, Research Department, Nieuwelaan 38, B-1860 Meise, Belgium & University of Antwerp, Department of Biology - ECOSPHERE, Universiteitsplein 1, B-2610 Wilrijk, Belgium
  • 2. Meise Botanic Garden, Research Department, Nieuwelaan 38, B-1860 Meise, Belgium

Description

Vijver, Bart Van De, Coomans, Annika, Pottiez, Margaux (2025): Planothidium islandicum sp. nov., a new cavum-bearing Planothidium species from the Westfjords, northwestern Iceland (Achnanthaceae, Bacillariophyceae). Phytotaxa 731 (2): 183-186, DOI: 10.11646/phytotaxa.731.2.9, URL: https://doi.org/10.11646/phytotaxa.731.2.9

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Identifiers

LSID
urn:lsid:plazi.org:pub:8562E445FFBFFFE35A27DD2BFFAE0178

Cites
Publication: 10.1080/0269249X.2017.1312548 (DOI)
Publication: 10.5507/fot.2020.016 (DOI)
Publication: 10.1080/0269249X.2006.9705673 (DOI)
Publication: 10.1080/0269249X.1996.9705389 (DOI)
Publication: 10.11646/phytotaxa.665.3.9 (DOI)
Publication: 10.11646/phytotaxa.138.1.6 (DOI)
Publication: 10.5507/fot.2018.016 (DOI)
Has part
Figure: 10.5281/zenodo.18421964 (DOI)
Figure: 10.5281/zenodo.18421966 (DOI)

References

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  • Ehrenberg, C.G. (1839) Uber das im Jahre 1686 in Curland vom Himmel gefallene Meteor- papier und uber dessen Zusammensetzung aus Conferven und Infusorien. Abhandlungen der Koniglichen Akademie der Wissenschaften zu Berlin 1838: 45-58.
  • Greville, R.K. (1822) A description of two new plants of the order Algae, found in Scotalnd. Memoirs of the Wernerian Natural History Society 4: 213-217.
  • Jahn, R., Abarca, N., Gemeinholzer, B., Mora, D., Skibbe, O., Kulikovskiy, M., Gusev, E., Kusber, W.-H. & Zimmermann, J. (2017) Planothidium lanceolatum and Planothidium frequentissimum reinvestigated with molecular methods and morphology: four new species and the taxonomic importance of the sinus and cavum. Diatom Research 32 (1): 75-107. https://doi.org/10.1080/0269249X.2017.1312548
  • Kutzing, F.T. (1846) Kurze Mittheilung uber einige kieselschalige Diatomeen. Botanische Zeitung 4 (14): 247-249.
  • Kutzing, F.T. (1849) Species algarum1-922. F.A. Brockhaus, Lipsiae [Leipzig].
  • Lange-Bertalot, H. (1993) 85 neue Taxa und uber 100 weitere neu definierte Taxa erganzend zur Susswasserflora von Mitteleuropa, Vol. 2/1-4. 85 New Taxa and much more than 100 taxonomic clarifications supplementary to SuBwasserflora von Mitteleuropa Vol. 2/ 1-4. Bibliotheca Diatomologica 27: 1-454.
  • Lange-Bertalot, H. (1999) Neue Kombinationen von Taxa aus Achnanthes Bory (sensu lato). Iconographia Diatomologica 6: 270-283.
  • Marquardt, G.C., Bicudo, D.C., Bicudo, C.E.M., Ledru, M.-P., Ector, L. & Wetzel, C.E. (2021) Planothidium scrobiculatum sp. nov. (Bacillariophyta), a new monoraphid diatom from freshwater Pleistocene deposits of South America. Fottea 21 (1): 53-61. https://doi.org/10.5507/fot.2020.016
  • Morales, E.A. (2006) Small Planothidium Round et Bukhtiyarova (Bacillariophyceae) taxa related to P. daui (Foged) Lange -Bertalot from the United States. Diatom Research 21: 325-342. https://doi.org/10.1080/0269249X.2006.9705673
  • Novis, P.M., Braidwood, J. & Kilroy, C. (2012) Small diatoms (Bacillariophyta) in cultures from the Styx River, New Zealand, including descriptions of three new species. Phytotaxa 64: 11-45. https://doi.org/0.11646/phytotaxa.64.1.3
  • Ostrup, E. (1918) Fresh-water diatoms from Iceland. In: Rosenvinge, L.K. & Warming, E. (Eds.) The Botany of Iceland. Vol. II, Part I. No. 5. J. Frimodt; John Wheldon and Co., Copenhagen & London, pp. 1-98.
  • Round, F.E. & Bukhtiyarova, L. (1996) Four new genera based on Achnanthes (Achnanthidium) together with a re-definition of Achnanthidium. Diatom Research 11 (2): 345-361. https://doi.org/10.1080/0269249X.1996.9705389
  • Tseplik, N., Maltsev, Y., Glushchenko, A., Genkal, S., Mironova, E. & Kulikovskiy, M. (2024) New cavum-bearing Planothidium (Achnanthidiaceae, Bacillariophyceae) specie from the Kamchatka Peninsula, Russia. Phytotaxa 665 (3): 271-281. https://doi.org/10.11646/phytotaxa.665.3.9
  • Van de Vijver, B., Coomans, A., Pottiez, M. & Wetzel, C.E. (2025) Epitypification of Achnanthes boyei Ostrup and its transfer to the genus Planothidium (Achnanthidiaceae, Bacillariophyceae). Notulae Algarum 385: 1-4.
  • Wetzel, C.E., Van de Vijver, B., Hoffmann, L. & Ector, L. (2013) Planothidium incuriatum sp. nov. a widely distributed diatom species (Bacillariophyta) and type analysis of Planothidium biporomum. Phytotaxa 138 (1): 43-57. https://doi.org/10.11646/phytotaxa.138.1.6
  • Wetzel, C.E., Van de Vijver, B., Blanco, S. & Ector, L. (2019) On some common and new cavum-bearing Planothidium (Bacillariophyta) species from freshwater. Fottea 19 (1): 50-89. https://doi.org/10.5507/fot.2018.016