Taxon Account

Brachysira brebissonii R.Ross; 1986; 607

Key references

Van De Vijver B. 2014. Analysis of the type material of Navicula brachysira Brébisson with the description of Brachysira sandrae, a new raphid diatom (Bacillariophyceae) from Iles Kerguelen (TAAF, sub-Antarctica, southern Indian Ocean). Phytotaxa. 184(3): 139-147.

Kennedy B., Allott N. 2017. A review of the genus Brachysira in Ireland with the description of Brachysira praegeri and Brachysira conamarae, new raphid diatoms (Bacillariophyceae) from high status waterbodies. Phytotaxa. 326: 1-27.

Morphology

Shape
Valves lanceolate to elliptic-lanceolate with rounded ends.

Symmetry
Isopolar, bilaterally symmetrical.

Striae
Uniseriate, radiate becoming parallel near the ends, transapically elongated areolae are visible in LM.

Axial area
Narrow, linear.

Central area
Small, circular or rhombic.

Raphe
Straight, filiform, proximal endings appear expanded in LM; one ridge on either side of the raphe (SEM).


SEM morphology
Small protrusions on the virgae.

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; Illustrations
Hartley B., Barber H.G., Carter J.R., Sims P.A. 1996. An Atlas of British Diatoms. Bristol,. Biopress Limited. 601 pp; 290 Morphology; Taxonomy; Description; Illustrations
Wolfe A.P., Kling H.J. 2001. A consideration of some North American soft-water Brachysira taxa and description of B. arctoborealis sp. nov. Lange-Bertalot-Festschrift: Studies on Diatoms. Dedicated to Prof. Dr. Dr. h.c. Horst Lange-Bertalot on the occasion of his 65th Birthday. A.R.G. Gantner Verlag. 243-264 pp Morphology; Illustrations; Taxonomy
Van De Vijver B. 2014. Analysis of the type material of Navicula brachysira Brébisson with the description of Brachysira sandrae, a new raphid diatom (Bacillariophyceae) from Iles Kerguelen (TAAF, sub-Antarctica, southern Indian Ocean). Phytotaxa. 184(3): 139-147. Morphology; Taxonomy; Type Illustration
Kennedy B., Allott N. 2017. A review of the genus Brachysira in Ireland with the description of Brachysira praegeri and Brachysira conamarae, new raphid diatoms (Bacillariophyceae) from high status waterbodies. Phytotaxa. 326: 1-27. Morphology; Illustrations;
This page should be cited as:

Jüttner I. Brachysira brebissonii R.Ross; 1986; 607. 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=3670. [Accessed:  ].

Image Gallery

Record last modified: 27/12/2020