Staurosirella rhomboides (Grunow) E.Morales & Manoylov; 2010; 43
Key references
Morales E.A., Manoylov K.M. 2006. Morphological studies on selected taxa in the genus Staurosirella Williams et Round (Bacillariophyceae) from rivers in North America. Diatom Research. 21(2): 343-364.
Morphology
Size
8.0-21.5 µm long, 4.0-7.0 µm wide (UK population); 13-55 µm long, 5.5-9 µm wide (Morales & Manoylov 2006).
Shape
Valves rhombic with broadly rounded apices.
Symmetry
Large valves more or less isopolar, smaller valves slightly heteropolar.
Striae
Parallel in central part of the valve, radiate towards the apices, 9-10 in 10 µm (UK population), 6.5-9 in 10 µm, (Morales & Manoylov 2006); areolae not discernible in LM.
Axial area
Sternum moderately wide and rhombic in larger valves, narrow rhombic or linear in smaller valves.
SEM morphology
Two pore fields of different size located at the apices. Small spines present at valve face/mantle junction, 1-2 located between the areolae; smaller granules present at and near the valve margin between the areolae and on the vimines.
8.0-21.5 µm long, 4.0-7.0 µm wide (UK population); 13-55 µm long, 5.5-9 µm wide (Morales & Manoylov 2006).
Shape
Valves rhombic with broadly rounded apices.
Symmetry
Large valves more or less isopolar, smaller valves slightly heteropolar.
Striae
Parallel in central part of the valve, radiate towards the apices, 9-10 in 10 µm (UK population), 6.5-9 in 10 µm, (Morales & Manoylov 2006); areolae not discernible in LM.
Axial area
Sternum moderately wide and rhombic in larger valves, narrow rhombic or linear in smaller valves.
SEM morphology
Two pore fields of different size located at the apices. Small spines present at valve face/mantle junction, 1-2 located between the areolae; smaller granules present at and near the valve margin between the areolae and on the vimines.
Literature
References are given in chronological order.
Reference |
Citation |
|---|---|
| Morales E.A., Manoylov K.M. 2006. Morphological studies on selected taxa in the genus Staurosirella Williams et Round (Bacillariophyceae) from rivers in North America. Diatom Research. 21(2): 343-364. | Morphology; Taxonomy; Illustrations; |
| Morales E.A., Manoylov K.M., Bahls L.L. 2010. Three new araphid diatoms (Bacillariophyta) from rivers in North America. Proceedings of the Academy of Natural Sciences of Philadelphia. 160: 29-46. | Taxonomy |
| Ognjanova-Rumenova N., Buczkó K., Wojtal A.Z., Jahn R. 2015. Staurosirella rhombus (Ehrenberg), Ognjanova-Rumenova, Buczkó, Wojtal & R. Jahn, comb. nov. - typification, morphology and biostratigraphic significance. Phytotaxa. 218(3): 279-288. | Morphology; Taxonomy; Illustrations |
| Peeters V., Ector L. 2017. Atlas des diatomées des cours d'eau du territoire bourguignon. Vol.1. Direction Régionale de l'Environnement, de l'Aménagement et du Logement Bourgogne-Franche-Comté, Dijon. 309 pp. | Illustrations |
Similar Species
Similar species not published on this website:
Staurosirella rhombus (Ehrenberg) Ognjanova-Rumenova, Buczkó, Wojtal & R.Jahn; 2015; 282
This page should be cited as:
Jüttner I., Van de Vijver B., Wetzel C.E., Ector L., Williams D.M. Staurosirella rhomboides (Grunow) E.Morales & Manoylov; 2010; 43. In: Jüttner I., Carter C., 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=4660. [Accessed:
].
Image Gallery
Record last modified: 25/03/2021