Taxon Account

Achnanthidium lineare W. Smith; 1855; 8

Synonymy

Achnanthes minutissima inconspicua Østrup 1910: 129
Achnanthidium minutissimum var. inconspicuum (Østrup) Jüttner & E.J.Cox 2010: 309
Achnanthidium minutissimum form. inconspicuum (Østrup) Compère & Riaux-Gobin 2009: 40

Key references

Van de Vijver B., Ector L., Beltrami M.E., De Haan M., Falasco E., Hlúbiková D., Jarlman A., Kelly M., Novais M., Wojtal A.Z. 2011. A critical analysis of the type material of Achnanthidium lineare W. Sm. (Bacillariophyceae). Algological Studies. 136/137: 167-191.

Morphology

Shape
Valves linear to narrow elliptic with rounded ends, frustules rectangular and bent in girdle view.

Symmetry
Valves isopolar.

Valve
Frustules heterovalvar with concave raphe valve and convex rapheless valve.

Striae
Striae almost parallel or slightly radiate near the valve centre, more radiate towards the apices.

Axial area
Narrow, linear axial area on the raphe valve; narrow, linear axial area near the valve ends, widening slightly towards the valve centre on the rapheless valve.

Central area
A transverse fascia on the raphe valve, absent or slightly elliptical on the rapheless valve.

Raphe
Simple, filiform with straight, slightly expanded proximal raphe ends, and straight terminal raphe fissures.

Literature

References are given in chronological order.

Reference
Citation
Smith W. 1855. Notes of an excursion to the south of France and the Auvergne in Search of Diatomaceae. Annals and Magazine of Natural History, 2nd series. 15: 1-9; pl.1. Taxonomy; Description; Morphology; Type Illustration
Potapova M.G., Ponader K.C. 2004. Two common North American diatoms Achnanthidium rivulare sp. nov. and A. deflexum (Reimer) Kingston: morphology, ecology and comparison with related species. Diatom Research. 19(1): 33-57. Morphology; Type Illustration
Krammer K., Lange-Bertalot H. 2004. Süßwasserflora Mitteleuropas. Bacillariophyceae. 4. Teil. Achnanthaceae. Kritische Ergänzungen zu Achnanthes s.l., Navicula s.str., Gomphonema. Eds Ettl H., Gärtner G., Heynig H., Mollenhauer D., Gustav Fischer Verlag, Stuttgart. 468 pp Taxonomy
Tuji A. 2007. Algae Aquae Dulcis Japonicae Exsiccatae. A. Tuji. Tsukuba, National Museum of Nature and Science. 1-29. Morphology; Type Illustration
Van de Vijver B., Ector L., Beltrami M.E., De Haan M., Falasco E., Hlúbiková D., Jarlman A., Kelly M., Novais M., Wojtal A.Z. 2011. A critical analysis of the type material of Achnanthidium lineare W. Sm. (Bacillariophyceae). Algological Studies. 136/137: 167-191. Type Illustration;
Wojtal A.Z., Ector L., Van de Vijver B., Morales E.A., Blanco S., Piatek J., Smieja A. 2011. The Achnanthidium minutissimum complex (Bacillariophyceae) in southern Poland. Algological Studies. 136/137: 167-191. Morphology; Illustrations

Similar Species

Similar species not published on this website:

Achnanthidium hoffmannii Van de Vijver; 2011; 195/196

Achnanthidium pseudolineare Van der Vijver, Novais & Ector; 2011; 186

This page should be cited as:

Cox E. J., Jones V., Jüttner I. Achnanthidium lineare W. Smith; 1855; 8. 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=3602. [Accessed:  ].

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Record last modified: 27/12/2020