Grunow in Van Heurck 1881 Category: Nitzschioid
BASIONYM: Nitzschia brevissima Grunow in Van Heurck 1881
Contributor: Pat Kociolek - September 2011
Length Range: 20-55 µm
Width Range: 3.5-5.5, as measured in the middle of the valve µm
Striae in 10 µm: 37-39
Valves are broadly linear with concave, protracted margins. The valves are distinctly to slightly sigmoid, a shape produced by the ends being bent in opposite directions. The apices are narrowly rounded. A keel is located at the valve margin, with very distinct fibulae. Fibulae number 5-8 in 10 µm. Striae are barely visible with DIC or oblique lighting.
Basionym: Nitzschia brevissima
Author: Grunow in Van Heurck 1881
Length Range: µm
Striae in 10 µm:
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.
Van Heurck, H. (1881). Synopsis des Diatomées de Belgique. Atlas. Ducaju & Cie., Anvers. pls 31-77.