Taxon Account

Navicula lanceolata (Agardh) Kützing; 1844; 94

Key references

Lange-Bertalot H. 1980. Zur taxonomischen Revision einiger ökologisch wichtiger «Naviculae lineolatae» Cleve. Die Formenkreise um Navicula lanceolata, N. viridula, N. cari. Cryptogamie: Algologie. 1(1): 29-50.

Morphology

Shape
Valves narrowly to broadly lanceolate with slightly protracted, bluntly rounded apices.

Symmetry
Isopolar, bilaterally symmetrical.

Striae
Radiate at centre, becoming parallel and then convergent near the apices; central striae markedly shorter.

Axial area
Narrow, linear.

Central area
Round to slightly quadrate, sometimes slightly asymmetrical, rounder on one side than the other.

Raphe
Straight, with widely separated, expanded, slightly deflected central endings; terminal endings clearly and strongly hooked towards the secondary side of the valve.

Literature

References are given in chronological order.

Reference
Citation
Agardh C.A. 1827. Aufzählung einiger in den ostereichischen Ländern gefundenen neuen Gattungen und Arten von Algen nebst ihrer Diagnostik und beigefügten Bemerkungen. Flora oder Botanische Zeitung, Regensburg. 40: 625-640. Morphology; Description; Taxonomy
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 Illustrations; Morphology
Lange-Bertalot H. 1980. Zur taxonomischen Revision einiger ökologisch wichtiger «Naviculae lineolatae» Cleve. Die Formenkreise um Navicula lanceolata, N. viridula, N. cari. Cryptogamie: Algologie. 1(1): 29-50. Morphology; Illustrations; Taxonomy;
Hofmann G., Werum M., Lange-Bertalot H. 2011. Diatomeen im Süßwasser-Benthos von Mitteleuropa. A.R.G. Gantner, Ruggell. 908 pp Ecology; Illustrations; Morphology
This page should be cited as:

Cox E. J. Navicula lanceolata (Agardh) Kützing; 1844; 94. In: Jüttner I., Bennion H., Carter C., Cox E.J., Ector L., Flower R., Jones V., Kelly M.G., Mann D.G., Sayer C., Turner J. A., 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=2948. [Accessed:  ].

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Record last modified: 27/12/2020