Taxon Account

Encyonema latens (Krasske) D.G.Mann; 1990; 666

Synonymy

Cymbella latens Krasske 1937
Cymbella minuta f. latens (Krasske) Reimer in Patrick & Reimer 1975

Key references

Krammer K. 1997. Die cymbelloiden Diatomeen - Eine Monographie der weltweit bekannten Taxa. Teil 1. Allgemeines und Encyonema Part. Bibliotheca Diatomologica, Vol. 36, J. Cramer, Berlin. 382 pp

Morphology

Size
16.5-18.5 µm long, 5.0-5.5 µm wide (UK population).

Shape
Valves cymbelloid with strongly convex dorsal margin, slightly convex ventral margin, and protracted capitate ends.

Symmetry
Isopolar, dorsiventral.

Striae
Striae slighty radiate on dorsal side, more or less parallel or slightly radiate on ventral side, 13-16 in 10 µm.

Axial area
Narrow, straight.

Central area
Indistinct.

Raphe
Slightly curved with slightly expanded and dorsally bent proximal ends, and short ventrally deflected terminal fissures.

Literature

References are given in chronological order.

Reference
Citation
Krasske G. 1937. Spät- und postglaziale Süßwasser-Ablagerungen auf Rügen, II. Diatomeen aus den postglazialen Seen auf Rügen. Archiv für Hydrobiologie. 31: 38-53. Morphology; Taxonomy; Description; Type Illustration
Patrick R.M., Reimer C.W. 1975. The Diatoms of the United States Exclusive of Alaska and Hawaii. Volume 2. Part 2. Entomoneidaceae, Cymbellaceae, Gomphonemaceae, Epithemiaceae. Monographs of the Academy of Natural Sciences of Philadelphia. 13: 213 pp.; 28 pls. Morphology; Illustrations
Round F.E., Crawford R.M., Mann D.G. 1990. The Diatoms. Biology & Morphology of the Genera. Cambridge University Press, Cambridge. 747 pp Taxonomy
Lange-Bertalot H., Külbs K., Lauser T., Nörpel-Schempp M., Willmann M. 1996. Diatom Taxa introduced by Georg Krasske Documentation and Revision. Iconographia Diatomologica Vol. 3, Lange-Bertalot H. (ed.), Koeltz Scientific Books, Königstein. 358 pp Morphology; Illustrations; Type Illustration
Krammer K. 1997. Die cymbelloiden Diatomeen - Eine Monographie der weltweit bekannten Taxa. Teil 1. Allgemeines und Encyonema Part. Bibliotheca Diatomologica, Vol. 36, J. Cramer, Berlin. 382 pp Morphology; Taxonomy; Illustrations
Gesierich D., Rott E. 2012. Is diatom richness responding to catchment glaciation? A case study from Canadian headwater streams. Journal of Limnology. 71(1): 72-83. Ecology; Illustrations
This page should be cited as:

Jüttner I., Ector L. Encyonema latens (Krasske) D.G.Mann; 1990; 666. 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=4604. [Accessed:  ].

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Record last modified: 15/08/2021