Encyonopsis cesatii (Rabenhorst) K.Krammer; 1997; 152
Synonymy
Cymbella cesatii (Rabenhorst) Grunow in Schmidt et al. 1881
Navicula cesatii Rabenhorst 1853
Key references
Krammer K. 1997. Die cymbelloiden Diatomeen. Eine Monographie der weltweit bekannten Taxa. Teil 2. Encyonema part., Encyonopsis and Cymbellopsis. Bibliotheca Diatomologica, Vol. 37, J. Cramer, Berlin. 469 pp
Morphology
Size
18-30 µm long, 4.5-5.0 µm wide (UK population), 18-60 µm long, 4-6(8) µm wide (Lange-Bertalot 2017).
Shape
Valves lanceolate, dorsal and ventral margins convex, protracted, narrowly rounded valve ends.
Symmetry
Slightly dorsiventral, isopolar.
Striae
Striae radiate throughout valve, 18-20 in 10 µm (UK population), 18-22 in 10 µm (Lange-Bertalot et al. 2017).
Axial area
Narrow, linear, slightly curved.
Central area
Small, rounded, sometimes inconspicuous, bordered by 1-2 slightly shortened striae on ventral and dorsal side.
Raphe
Raphe slightly curved, slightly expanded central pores, distal raphe fissures bent to ventral side.
18-30 µm long, 4.5-5.0 µm wide (UK population), 18-60 µm long, 4-6(8) µm wide (Lange-Bertalot 2017).
Shape
Valves lanceolate, dorsal and ventral margins convex, protracted, narrowly rounded valve ends.
Symmetry
Slightly dorsiventral, isopolar.
Striae
Striae radiate throughout valve, 18-20 in 10 µm (UK population), 18-22 in 10 µm (Lange-Bertalot et al. 2017).
Axial area
Narrow, linear, slightly curved.
Central area
Small, rounded, sometimes inconspicuous, bordered by 1-2 slightly shortened striae on ventral and dorsal side.
Raphe
Raphe slightly curved, slightly expanded central pores, distal raphe fissures bent to ventral side.
Literature
References are given in chronological order.
Reference |
Citation |
|---|---|
| Rabenhorst, L. 1853. Die Süsswasser-Diatomaceen (Bacillarien) für Freunde der Mikroskopie. Eduard Kummer, Leipzig. 72 pp., 9 pls.. | Morphology; Taxonomy; Illustrations; Description |
| Schmidt A. 1881. Atlas der Diatomaceen-Kunde. Ernst Schlegel, Verlag und Buchdruckerei, Aschersleben, Series 2, Heft 18, pl. 71, figs 48, 49. | Illustrations; Taxonomy |
| Krammer K. 1997. Die cymbelloiden Diatomeen. Eine Monographie der weltweit bekannten Taxa. Teil 2. Encyonema part., Encyonopsis and Cymbellopsis. Bibliotheca Diatomologica, Vol. 37, J. Cramer, Berlin. 469 pp | Morphology; Taxonomy; Ecology; Type Illustration |
| Bahls L.L. 2013. Northwest Diatoms. Encyonopsis from western North America: 31 species from Alberta, Idaho, Montana, Oregon, South Dakota, and Washington, including 17 species described as new. Vol. 5. Loren L. Bahls, Helena. | Morphology; Illustrations; Ecology |
| Lange-Bertalot H., Hofmann G., Werum M., Cantonati M. 2017. Freshwater Benthic Diatoms of Central Europe: Over 800 Common Species Used in Ecological Assessment. Cantonati M., Kelly M.G., Lange-Bertalot H. (eds.), Koeltz Botanical Books, Schmitten-Oberreifenberg, Germany. 942 pp | Morphology; Illustrations; Ecology |
| Reichardt E. 2018. Die Diatomeen im Gebiet der Stadt Treuchtlingen. Bayerische Botanische Gesellschaft Vol. 1,2. 1184 pp | Morphology; Illustrations; Ecology |
This page should be cited as:
Jüttner I., Carter C., Ector L., Van de Vijver B., Williams D.M. Encyonopsis cesatii (Rabenhorst) K.Krammer; 1997; 152. 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=3798. [Accessed:
].
Image Gallery
Record last modified: 09/12/2022