Nitzschia alpina

Hustedt 1943      Category: Nitzschioid
BASIONYM: Nitzschia alpina Hustedt 1943

Nitzschia acicularis


Nitzschia amphibia

LM scalebar = 10 µm = 80 pixels.


Contributor: Loren Bahls - May 2012
Length Range: 13-21 µm
Width Range: 3.3-4.2 µm
Striae in 10 µm: 23-25


Valves are linear to lanceolate, with bluntly rounded to somewhat rostrate apices. Fibulae are distinct and number 11-14 in 10 µm. The fibulae are equidistant and the central nodule absent. Areolae are indistinct.

Original Description

Basionym: Nitzschia alpina
Author: Hustedt 1943
Length Range: µm
Striae in 10 µm:

Original Description

Original Images

Cite This Page:
Bahls, L. (2012). Nitzschia alpina. In Diatoms of the United States. Retrieved November 29, 2015, from

Species: Nitzschia alpina

Contributor: Loren Bahls

Reviewer: Rex Lowe


Hustedt, F. (1943). Die Diatomeenflora einiger Hochgebirgsseen der Landschaft Davos in den schweizer Alpen. Internationale Revue der gesamten Hydrobiologie und Hydrographie 43:124-197, 225-280.

Krammer, K. and Lange-Bertalot, H. (1988). Bacillariophyceae. 2. Teil: Bacillariaceae, Epithemiaceae, Surirellaceae. In: Ettl, H., J. Gerloff, H. Heynig and D. Mollenhauer (eds.) Susswasserflora von Mitteleuropa, Band 2/2. Gustav Fisher Verlag, Jena.

Lange-Bertalot, H. and Simonsen, R. (1978). A taxonomic revision of the Nitzschiae lanceolatae Grunow. 2. European and related extra-European fresh water and brackish water taxa. Bacillaria 1:11-111.

Simonsen, R. (1987). Atlas and Catalogue of the Diatom Types of Friedrich Hustedt. J. Cramer, Berlin & Stuttgart 1: 525 pp.

Links & ID's

Index Nominum Algarum (INA)

Original INA

California Academy of Sciences (CAS)

Nitzschia alpina CAS

North American Diatom Ecological Database (NADED)

NADED ID: 48040

Autecology Discussion

Nitzschia alpina is widely distributed in lakes and streams in the Northern Rocky Mountains, where mean pH is 7.8 and mean specific conductance is 266 µS/cm. The most common diatom associates of N. alpina in these waters are Fragilaria tenera, Cyclotella comensis, Brachysira microcephala, Encyonopsis cesatii, Nitzschia angustata and Nitzschia bryophila.


Bowman Lake, Glacier National Park, Montana: home of Nitzschia alpina.

Credit/Source: Loren Bahls