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Catalogue of Diatom Names, On-Line Version, Updated 19 Sep 2011
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Placoneis porifera var. opportuna (Hustedt) E. Novelo, R. Tavera & C. Ibarra 2007, p. 53
BasionymNavicula opportuna Hustedt 1950
CommentsBasionym and its place of publication is indicated only indirectly by the citation of "Navicula porifera var. opportuna (Hustedt) Lange-Bertalot in Krammer & Lange-Bertalot. Bibliotheca Diatomologica 9: 86, fig. 198. 1985"
Published inNovelo, E., Tavera, R. and Ibarra, C. 2007 [ref. 013534]. Bacillariophyceae from Karstic Wetlands in Mexico. Bibliotheca Diatomologica 54:1-136, 3 figs, 21 pls.
Type     INA card not found. Click here to check this name in the INA website.
CollectorAssessment of record accuracylikely accurate
List of nomenclatural synonymsNavicula opportuna Hustedt 1950
Navicula porifera var. opportuna (Hustedt) Lange-Bertalot in Krammer & Lange-Bertalot 1985