Taxon Account

Amphora inariensis Krammer; 1980; 211

Key references

Krammer K. 1980. Morphologic and taxonomic investigations of some freshwater species of the diatom genus Amphora Ehr. Bacillaria. 3: 197-225.

Morphology

Shape
Valves semi-lanceolate with convex dorsal margin and straight or slightly gibbous ventral margin; frustule in girdle view biconvex.
Valve ends narrowly rounded and sometimes bent towards the ventral margin.

Symmetry
Dorsiventral, isopolar.

Striae
Dorsal striae parallel to radiate, ventral striae radiate in the centre and convergent towards the valve ends; striae interrupted by the central area, 14-17 in 10 µm, without punctation.

Axial area
Narrow, offset towards the ventral margin, straight for most of its length until it approaches the valve margin, then curving towards the ventral margin.

Central area
On dorsal side fascia reaching the dorsal margin, on ventral side broader fascia.

Raphe
Filiform, straight raphe, proximal raphe ends slightly dorsally bent.

Other features
Girdle wider on one side of frustule, both valve faces visible when whole frustules seen in girdle view.

Literature

References are given in chronological order.

Reference
Citation
Krammer K. 1980. Morphologic and taxonomic investigations of some freshwater species of the diatom genus Amphora Ehr. Bacillaria. 3: 197-225. Morphology; Taxonomy; Description; Type Illustration;
Antoniades D., Douglas M.S.V., Smol J.P. 2005. Benthic diatom autecology and inference model development from the Canadian High Arctic Archipelago. Journal of Phycology. 41(1): 30-45. Ecology
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 Illustrations; Morphology
This page should be cited as:

Jüttner I. Amphora inariensis Krammer; 1980; 211. 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=3188. [Accessed:  ].

Image Gallery

Record last modified: 27/12/2020