Taxon Account

Brachysira serians (Brébisson) Round & Mann; 1981; 227

Synonymy

Anomoeoneis serians (Brébisson) Cleve 1895
Navicula serians Brébisson ex Kützing 1844

Key references

Lange-Bertalot H., Moser G. 1994. Brachysira. Monographie der Gattung. 29. J. Cramer, Berlin. 212 pp

Morphology

Size
35-115 µm long, 10-21 µm wide (Lange-Bertalot & Moser 1994).

Shape
Valves lanceolate with cuneate apices.

Symmetry
Isopolar, bilaterally symmetrical.

Striae
Uniseriate, radiate, 19-23 in 10 µm (Lange-Bertalot & Moser 1994), transapically elongated areolae are visible in LM.

Axial area
Broad, widening towards the central area.

Central area
Rhombic or rounded, ca. 1/3 of the valve width.

Raphe
Straight, filiform with small proximal raphe ends.


SEM morphology
Valve surface with apically orientated ridges.

A ridge on either side of the raphe and along the valve margin.

Literature

References are given in chronological order.

Reference
Citation
Round F.E., Mann D.G. 1981. The diatom genus Brachysira. I. Typification and separation from Anomoeoneis. Archiv für Protistenkunde. 124: 221-231. Morphology; Taxonomy
Lange-Bertalot H., Moser G. 1994. Brachysira. Monographie der Gattung. 29. J. Cramer, Berlin. 212 pp Morphology; Taxonomy; Illustrations;
Hofmann G., Werum M., Lange-Bertalot H. 2011. Diatomeen im Süßwasser-Benthos von Mitteleuropa. A.R.G. Gantner, Ruggell. 908 pp Morphology; Ecology; Illustrations

Similar Species

Similar species not published on this website:

This page should be cited as:

Jüttner I. Brachysira serians (Brébisson) Round & Mann; 1981; 227. 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=3671. [Accessed:  ].

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Record last modified: 27/12/2020