Taxon Account

Amphora macedoniensis Nagumo; 2003; 30

Key references

Naguno T. 2003. Taxonomic studies of the subgenus Amphora Cleve of the genus Amphora (Bacillariophyceae) in Japan. 49. Bibliotheca Diatomologica. 3-265 pp

Morphology

Size
11.0-25.0 µm long, 4.0-5.5 µm wide (UK population).

Shape
Valves semi-elliptical with convex dorsal margin, slightly concave ventral margin, and narrowly rounded, slightly ventrally bent valve ends.

Symmetry
Dorsiventral, isopolar.

Striae
Dorsal striae radiate in valve centre becoming more strongly radiate towards apices, 16-18 in 10 µm (UK population), 15-16 in 10 µm (Levkov 2009). Ventral striae radiate in valve centre, becoming convergent towards apices, 10-13 in 10 µm (Levkov 2009).

Axial area
Narrow, slightly arched.

Central area
Ventral fascia slightly broader than dorsal central area; the latter elliptical, not extending to dorsal margin.

Raphe
Raphe branches arcuate with slightly expanded, more or less straight proximal raphe ends.


SEM morphology
Dorsal striae composed of elongated areolae, each ventral stria composed of a single areola.

Literature

References are given in chronological order.

Reference
Citation
Naguno T. 2003. Taxonomic studies of the subgenus Amphora Cleve of the genus Amphora (Bacillariophyceae) in Japan. 49. Bibliotheca Diatomologica. 3-265 pp Morphology; Taxonomy; Description; Type Illustration
Levkov Z. 2009. Amphora sensu lato. Lange-Bertalot H. (ed.) Diatoms of Europe: Diatoms of the European Inland Waters and Comparable Habitats. Vol. 5., A.R.G. Gantner Verlag K.G., Ruggell. 916 pp Morphology; Illustrations
This page should be cited as:

Jüttner I., Carter C., Levkov Z., Ector L. Amphora macedoniensis Nagumo; 2003; 30. 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=4663. [Accessed:  ].

Image Gallery

Record last modified: 22/04/2021