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Nitzschia dissipata subsp. oligotraphenta

Lange-Bert. in Lange-Bert. and Metzeltin 1996      Category: Nitzschioid

Nitzschia dissipata


Nitzschia exilis

LM scalebar = 10 µm = 80 pixels.


Contributor: Kalina Manoylov - October 2011
Length Range: 30-46 µm
Width Range: 3.5-5 µm
Striae in 10 µm: > 40


Valves are linear to linear-lanceolate with parallel sides. The valve ends are well defined and capitate. The raphe is prominent and eccentric. Fibulae are distinct and parallel to the transapical axis. Interfibular spaces are rectangular to square, fibulae 8-11 in 10 µm. Striae are not visible with LM. This species is found in oligotrophic habitats.

Original Description

Author: Lange-Bert. in Lange-Bert. and Metzeltin 1996
Length Range: 30-4 µm
Width Range: 3-4 µm
Striae in 10 µm: 46-48

Original Description

Latin: ssp. dissipata differt valvis ad instar regulariter potius linearibus vel anguste lineari-lanceolatis nec latius lanceolatis item apicibus distincte capitulatis. Longitudo 30-45 µm, latitude 3-4 µm. Carina valde excentrica posita. Fibulae 8,5-11,5 in 10 µm. Striae transapicales vix discernandae in microscopo photonico, 46-48 in 10 µm. (in microscopo electronico).

German: Im Unterschied zu ssp. dissipata sind die Schalen regelmäßig linear bis schmal lineal-lanzettlich und die Enden sind (in geeigneter Lage sichtbar) deutlich kopfig vorgezogen. Länge 30-45 µm, breite 3-4 µm. Der Raphenkiel leegt stets starker sxzentrisch. Fibulae 8,5-11,5/10 µm, Streifen 46-48/ 10 µm.

Original Images

Cite This Page:
Manoylov, K. (2011). Nitzschia dissipata. In Diatoms of the United States. Retrieved May 22, 2018, from

Species: Nitzschia dissipata

Contributor: Kalina Manoylov

Reviewer: Marina Potapova


Lange-Bertalot, H. and Metzeltin, D. (1996). Indicators of oligotrophy - 800 taxa representative of three ecologically distinct lake types, Carbonate buffered - Oligodystrophic - Weakly buffered soft water. Lange-Bertalot, H. (ed.), Iconographia Diatomologica. Annotated Diatom Micrographs. Vol. 2. Ecology, Diversity, Taxonomy. Koeltz Scientific Books. Königstein, Germany, 2:390 pp.

Links & ID's

Index Nominum Algarum (INA)

Original INA

California Academy of Sciences (CAS)

Nitzschia dissipata subsp. oligotraphenta CAS

North American Diatom Ecological Database (NADED)

NADED ID: 48596

Autecology Discussion