Taxon Account

Sellaphora capitata D.G.Mann & S.M.McDonald; 2004; 477

Key references

Mann D.G., McDonald S. M., Bayer M.M., Droop S.J.M., Chepurnov V.A., Loke R.E., Ciobanu A., Du Buf J.M.H. 2004. The Sellaphora pupula species complex (Bacillariophyceae): morphometric analysis, ultrastructure and mating data provide vidence for five new species. Phycologia. 43(4): 459-482.

Morphology

Size
Length 19-44 µm, width 7.2-8.2 µm (UK populations, Mann et al. 2004).

Shape
Valves narrowly elliptical with rostrate to subcapitate poles.

Symmetry
Isopolar, bilaterally symmetrical.

Striae
Mostly radiate, becoming parallel near the poles, 16-22 in 10 µm (UK populations, Mann et al. 2004).

Axial area
Narrow linear, straight.

Central area
Bow-tie-shaped subfascia; somewhat irregular outline due to alternate long and short striae bordering the central area.

Raphe
Simple, straight or very slightly undulate; proximal raphe endings, deflected towards the primary side, the internal endings also deflected towards the primary side, the terminal fissures abruptly bent towards the secondary side (SEM).

Other features
Polar bars appear wider than in
S. blackfordensis and are perpendicular to the raphe.

Literature

References are given in chronological order.

Reference
Citation
Mann D.G., McDonald S. M., Bayer M.M., Droop S.J.M., Chepurnov V.A., Loke R.E., Ciobanu A., Du Buf J.M.H. 2004. The Sellaphora pupula species complex (Bacillariophyceae): morphometric analysis, ultrastructure and mating data provide vidence for five new species. Phycologia. 43(4): 459-482. Morphology; Taxonomy; Description; Biology; Type Illustration;
Evans K.M., Mann D.G. 2009. A proposed protocol for nomenclaturally effective DNA barcoding of microalgae. Phycologia. 48(1): 70-74. Taxonomy; Type Illustration

Similar Species

This page should be cited as:

Mann D. G. Sellaphora capitata D.G.Mann & S.M.McDonald; 2004; 477. 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=4430. [Accessed:  ].

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Record last modified: 27/12/2020