Diatoms of North AmericaDiatoms of North America
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Compare Dickieia wislouchii

(Poret. and Anisimova) E.J. Cox 2026

Staurophora brantii has rhombic-lanceolate valves with barely protracted apices. Staurophora tackei has smaller linear-lanceolate valves with apices that are broadly rounded but not protracted.

LM scalebar = 10 µm
Staurophora wislouchii LM7 Staurophora wislouchii LM6 Staurophora wislouchii LM5 Staurophora wislouchii LM4 Staurophora wislouchii LM3 Staurophora wislouchii LM2 Staurophora wislouchii LM1
Length Range
25-40 µm
Width Range
7.3-11.4 µm
Striae in 10 µm
24-30

Dickieia brantii

(Bahls) E.J. Cox 2026

Staurophora brantii LM7 Staurophora brantii LM6 Staurophora brantii LM5 Staurophora brantii LM4 Staurophora brantii LM3 Staurophora brantii LM2 Staurophora brantii LM1
Length Range
38-48 µm
Width Range
9-12 µm
Striae in 10 µm
18-24 (14 initial valve)

Dickieia tackei

(Hust.) E.J. Cox 2026

Staurophora tackei LM6 Staurophora tackei LM5 Staurophora tackei LM4 Staurophora tackei LM3 Staurophora tackei LM2 Staurophora tackei LM1
Length Range
21-30 µm
Width Range
5.7-7.3 µm
Striae in 10 µm
20-30