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Catalogue of Diatom Names, On-Line Version, Updated 19 Sep 2011
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Navicula iridis var. firma (Kützing) Van Heurck 1896, p. 221
BasionymNavicula firma Kützing 1844
Published inVan Heurck, H. 1896 [ref. 000897]. A Treatise on the Diatomaceae. Translated by W.E. Baxter. William Wesley & Son, London. 558 pp., 35 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 affinis var. firma (Kützing) Rabenhorst 1864
Navicula firma Kützing 1844
Neidium firma (Kützing) Pfitzer 1871
Neidium iridis var. firma (firmum) (Kützing) Mayer 1913