Diatoms of North AmericaDiatoms of North America
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Compare Nitzschia acidoclinata

Lange-Bert. 1977

Compare

Nitzschia alpina and N. perminuta have fibulae that are evenly spaced through the median. Nitzschia hantzschiana has wider valves (3-4 µm) and lower stria and fibula density. Nitzschia frustulum has narrower apices and a lower stria density. Nitzschia fonticola, N. incognita, N. oregona and N. liebetruthii all have lanceolate to linear-lanceolate valves.

LM scalebar = 10 µm
Nitzschia acidoclinata LM5 Nitzschia acidoclinata LM4 Nitzschia acidoclinata LM3 Nitzschia acidoclinata LM7 Nitzschia acidoclinata LM2 Nitzschia acidoclinata LM1 Nitzschia acidoclinata LM6
Length Range
18.4-32.8 µm
Width Range
2.2-2.9 µm
Striae in 10 µm
31-33

Nitzschia alpina

Hust. 1943

Nitzschia alpina LM7 Nitzschia alpina LM6 Nitzschia alpina LM5 Nitzschia alpina LM4 Nitzschia alpina LM3 Nitzschia alpina LM2 Nitzschia alpina LM1
Length Range
13-21 µm
Width Range
3.3-4.2 µm
Striae in 10 µm
23-25

Nitzschia fonticola

(Grunow) Grunow in Van Heurck 1881

Fonticola 001 Fonticola 004 Fonticola 002 Fonticola 011 Fonticola 005 Fonticola 003 Fonticola 007
Length Range
10-55 µm
Width Range
2.5-4.5 µm
Striae in 10 µm
24-27

Nitzschia incognita

Legler and Krasske 1940

Nitzschia incognita LM7 Nitzschia incognita LM6 Nitzschia incognita LM5 Nitzschia incognita LM4 Nitzschia incognita LM3 Nitzschia incognita LM2 Nitzschia incognita LM1
Length Range
18.8-47.7 µm
Width Range
2.2-3.0 µm
Striae in 10 µm
29-31

Nitzschia oregona

Sovereign 1958

Nitzschia oregona LM1 Nitzschia oregona LM3 Nitzschia oregona LM2 Nitzschia oregona LM5 Nitzschia oregona LM4
Length Range
15-42 µm
Width Range
3 µm
Striae in 10 µm
23-25

Nitzschia liebethruthii

Rabenh. 1864

Liebetruthii Gc106965H005 Liebetruthii Gc106965H003 Liebetruthii Gc106965H001 Liebetruthii Gc108446A005 Liebetruthii Gc106965H002 Liebetruthii Gc108446A004 Liebetruthii Gc108446A002
Length Range
9.0-21.0 µm
Width Range
3.0-6.0 µm
Striae in 10 µm
24-26

Nitzschia perminuta

(Grunow in Van Heurck) H.Perag. 1903

Nitzschia perminuta LM1 Nitzschia perminuta LM5 Nitzschia perminuta LM4 Nitzschia perminuta LM3 Nitzschia perminuta LM2
Length Range
8-20 µm
Width Range
3-4 µm
Striae in 10 µm
22-27

Also compare to

Nitzschia frustulum

(Kütz.) Grunow in Cleve and Grunow

BioData Reference
Krammer and Lange-Bertalot 2/2 Pl 68 Fig 1-8

Nitzschia hantzschiana

Rabenh. 1860