Taxon Account

Fragilaria vaucheriae (Kützing) J.B.Petersen; 1938; 167

Synonymy

Exilaria vaucheriae Kützing 1833
Fragilaria capucina var. vaucheriae (Kützing) Lange-Bertalot 1980
Ceratoneis vaucheriae (Kützing) H. Kobayasi 1965
Synedra vaucheriae (Kützing) Kützing 1844
Ctenophora vaucheriae (Kützing) Schonfeldt 1907

Key references

Tuji A., Williams D.M. 2013. Examination of Types in the Fragilaria vaucheriae–intermedia Species Complex. Bull. Natl. Mus. Nat. Sci., Ser. B. 39(1): 1-9.

Wetzel C.E., Ector L. 2015. Taxonomy and ecology of Fragilaria microvaucheriae sp. nov. and comparison with the type materials of F. uliginosa and F. vaucheriae. Cryptogamie, Algologie. 36(3): 271-289.

Morphology

Size
Length 14.1-50.4 µm, width 3.8-5.1 µm (Wetzel & Ector 2015).

Shape
Valves linear or lineae-elliptic with rostrate or subcapitate ends.

Symmetry
Isopolar, bilaterally symmetrical.

Striae
Striae mostly more or less parallel at the valve centre becoming slightly radiate towards the ends, 11-14 in 10 µm (Wetzel & Ector 2015).

Axial area
Narrow, linear.

Central area
Large, quadrangular or rounded, unilateral and extending to the valve margin; ghost striae can be present.


SEM morphology
Uniseriate striae with rounded, occluded areolae.

Two apical pore fields.

One rimoportula near a pore field.

Small spines can be present at the valve margin.

Literature

References are given in chronological order.

Reference
Citation
Petersen J.B. 1938. Fragilaria intermedia-Synedra Vaucheriae. Botaniska Notiser. 1938(1-3): 164-170. Taxonomy; Illustrations; Morphology
Tuji A., Williams D.M. 2013. Examination of Types in the Fragilaria vaucheriae–intermedia Species Complex. Bull. Natl. Mus. Nat. Sci., Ser. B. 39(1): 1-9. Morphology; Taxonomy; Type Illustration;
Wetzel C.E., Ector L. 2015. Taxonomy and ecology of Fragilaria microvaucheriae sp. nov. and comparison with the type materials of F. uliginosa and F. vaucheriae. Cryptogamie, Algologie. 36(3): 271-289. Morphology; Taxonomy; Type Illustration;
Delgado C., Novais M.H., Blanco S., Almeida S.F.P. 2016. Fragilaria rinoi sp. nov. (Fragilariales, Fragilariophyceae) from periphytic river samples in Central Portugal. European Journal of Taxonomy. 248: 1-16. Morphology; Type Illustration
This page should be cited as:

Ector L., Jüttner I. Fragilaria vaucheriae (Kützing) J.B.Petersen; 1938; 167. In: Jüttner I., Carter C., Chudaev D., Cox E.J., Ector L., Jones V., Kelly M.G., Kennedy B., Mann D.G., Turner J. A., Van de Vijver B., Wetzel C.E., 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=2407. [Accessed:  ].

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Record last modified: 27/12/2020