Taxon Account

Mastogloia grevillei W. Smith in Gregory; 1856; 4

Key references

Pavlov A., Jovanovska E., Wetzel C.E., Ector L., Levkov Z. 2016. Freshwater Mastogloia (Bacillariophyceae) taxa from Macedonia, with a description of the epizoic M. sterijovskii sp. nov. Diatom Research. 31(2): 85-112.

Morphology

Size
Length 25-53 µm, width 8.5-11.0 µm (Pavlov et al. 2016).

Shape
Valves linear-lanceolate, margins tapering more strongly beyond the row of partecta to cuneate ends.

Symmetry
Isopolar, bilaterally symmetrical.

Striae
Slightly radiate, they can become parallel or slightly convergent at the valve ends.

Axial area
Narrow, linear.

Central area
Round, oval, sometimes irregular due to striae of various length bordering the central area.

Raphe
Undulate with expanded central ends.

Other features
Partectal ring clearly visible in LM.


SEM morphology
Proximal raphe ends drop-shaped and slightly deflected, distal raphe ends deflected towards the same side.

Striae biseriate with rounded external areola openings, areola bordering the axial area can be slightly larger, of various shapes and irregularly aligned.

Pseudosepta present at the valve ends.

Literature

References are given in chronological order.

Reference
Citation
Smith W. 1856. A Synopsis of the British Diatomaceae. John van Voorst, London. 107 pp; pls 32-62, pls A-E Morphology; Illustrations; Description
Gregory W. 1856. Notice of some New Species of British Fresh-Water Diatomaceae. Quarterly Journal of Microscopical Science. 4: 1-14. Morphology; Description; Illustrations
Stoermer, E.F., Pankratz, H.S. and Drum, R.W. (1964). 1964. The fine structure of Mastogloia grevillei Wm. Smith. Protoplasma. 59: 1-13. Morphology; Illustrations
Hofmann G., Werum M., Lange-Bertalot H. 2011. Diatomeen im Süßwasser-Benthos von Mitteleuropa. A.R.G. Gantner, Ruggell. 908 pp Ecology; Illustrations
Pavlov A., Jovanovska E., Wetzel C.E., Ector L., Levkov Z. 2016. Freshwater Mastogloia (Bacillariophyceae) taxa from Macedonia, with a description of the epizoic M. sterijovskii sp. nov. Diatom Research. 31(2): 85-112. Illustrations; Morphology
This page should be cited as:

Jüttner I. Mastogloia grevillei W. Smith in Gregory; 1856; 4. 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=4514. [Accessed:  ].

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Record last modified: 27/12/2020