Hippodonta capitata (Ehrenberg) Lange-Bertalot, Metzeltin & Witkowski; 1996
Synonymy
Navicula capitata Ehrenberg 1838
Key references
Pavlov A., Levkov Z., Williams D.M., Edlund M.B. 2013. Observations on Hippodonta (Bacillariophyceae) in selected ancient lakes. Phytotaxa. 90(1): 1-53.
Morphology
Size
13.5-30 µm long, 5-7 µm wide (Lange-Bertalot 2001, Genkal & Yarushina 2019).
Shape
Valves elliptic-lanceolate with protracted sub-capitate to capitate ends.
Symmetry
Isopolar, bilaterally symmetrical.
Striae
Striae broad, radiate in central part of valve, becoming convergent near apices, 8-12 in 10 µm (Lange-Bertalot 2001, Genkal & Yarushina 2019).
Axial area
Narrow, linear.
Central area
Small rounded, bordered by a slightly shortened stria on each side.
Raphe
Raphe straight, filiform with expanded central and distal endings; central endings positioned close to each other, distal endings slightly deflected.
SEM morphology
Striae biseriate with slit-like apically elongated external areola openings.
13.5-30 µm long, 5-7 µm wide (Lange-Bertalot 2001, Genkal & Yarushina 2019).
Shape
Valves elliptic-lanceolate with protracted sub-capitate to capitate ends.
Symmetry
Isopolar, bilaterally symmetrical.
Striae
Striae broad, radiate in central part of valve, becoming convergent near apices, 8-12 in 10 µm (Lange-Bertalot 2001, Genkal & Yarushina 2019).
Axial area
Narrow, linear.
Central area
Small rounded, bordered by a slightly shortened stria on each side.
Raphe
Raphe straight, filiform with expanded central and distal endings; central endings positioned close to each other, distal endings slightly deflected.
SEM morphology
Striae biseriate with slit-like apically elongated external areola openings.
Literature
References are given in chronological order.
Reference |
Citation |
|---|---|
| Ehrenberg C.G. 1838. Die Infusionsthierchen als vollkommene Organismen. Ein Blick in das tiefere organische Leben de Natur. Verlag von Leopold Voss, Leipzig. 1-xvii, 1-548 pp; 1-64 pls | Morphology; Description; Illustrations |
| Cox E.J. 1987. Studies on the diatom genus Navicula Bory. VI. The identity, structure and ecology of some freshwater species. Diatom Research. 2(2): 159-174. | Morphology; Illustrations |
| Lange-Bertalot H., Metzeltin D., Witkowski A. 1996. Hippodonta gen. nov. Umschreibung und Begründung einer neuen Gattung der Naviculaceae In: Lange-Bertalot, H. (ed.), Iconographia Diatomologica. Annotated Diatom Micrographs. Vol. 4. Taxonomy. Königstein, Koeltz Scientific Books. 247-275 pp | Taxonomy; Illustrations |
| Lange-Bertalot H. 2001. Navicula sensu stricto. 10 Genera Separated from Navicula sensu lato. Frustulia. Ruggell, A.R.G. Gantner. 526 pp | Morphology; Taxonomy; Illustrations; Ecology |
| Pavlov A., Levkov Z., Williams D.M., Edlund M.B. 2013. Observations on Hippodonta (Bacillariophyceae) in selected ancient lakes. Phytotaxa. 90(1): 1-53. | Morphology; Illustrations; |
| Genkal S.I., Yarushina M.I. 2019. Species of the genus Hippodonta (Bacillariophyta) in Russia: morphology, taxonomy and distribution. International Journal on Algae. 21(3): 199-216. | Morphology; Illustrations; Ecology |
This page should be cited as:
Jüttner I. Hippodonta capitata (Ehrenberg) Lange-Bertalot, Metzeltin & Witkowski; 1996. In: Jüttner I., Carter C., Cox E.J., Ector L., Jones V., Kelly M.G., Kennedy B., Mann D.G., Turner J. A., Van de Vijver B., Wetzel C.E., Williams D.M..
Freshwater Diatom Flora of Britain and Ireland. Amgueddfa Cymru - National Museum Wales. Available online at https://naturalhistory.museumwales.ac.uk/diatoms/browsespecies.php?-recid=2486. [Accessed:
].
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Record last modified: 20/12/2023