Taxon Account

Brachysira procera Lange-Bertalot & Moser; 1994; 55, 56

Key references

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

Morphology

Shape
Valves lanceolate with rostrate ends.

Symmetry
Isopolar, bilaterally symmetrical.

Striae
Radiate, becoming parallel and convergent at the apices; uniseriate, transapically elongated areolae are visible in LM.

Axial area
Narrow, linear.

Central area
Circular, oval to narrow elongate in larger valves.

Raphe
Straight, filiform, proximal endings appear expanded in LM and are spaced wider apart in larger specimens than in
B. neoexilis; one ridge on either side of the raphe (SEM).

Other features
Small protrusions on the virgae (SEM).

Literature

References are given in chronological order.

Reference
Citation
Lange-Bertalot H., Moser G. 1994. Brachysira. Monographie der Gattung. 29. J. Cramer, Berlin. 212 pp Morphology; Taxonomy; Description; Type Illustration;
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 procera Lange-Bertalot & Moser; 1994; 55, 56. 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=3673. [Accessed:  ].

Image Gallery

Record last modified: 27/12/2020