Nitzschia acicularis
(Kützing) W. Smith 1853 Category: Nitzschioid
BASIONYM: Synedra acicularis Kützing 1844
LM scalebar = 10 µm = 80 pixels.
Observations
Contributor: Pat Kociolek - September 2011
Length Range: 30.0-100.0 µm
Width Range: 3.0-4.0 µm
Striae in 10 µm:
Description
The central part of the valve has nearly parallel sides and a sharp tapering. The extended distal portions of the valve are tapered towards fine apices. The fibulae are fine and restricted to the margin, with a density 16-21 in 10 µm. The striae are not visible with light microscopy.
Original Description
Basionym: Synedra acicularis
Author: Kützing 1844
Length Range: µm
Striae in 10 µm:
Original Description
Original Images
Cite This Page:
Kociolek, P. (2011). Nitzschia acicularis. In Diatoms of the United States. Retrieved May 23, 2013, from http://westerndiatoms.colorado.edu/taxa/species/nitzschia_acicularis
Species: Nitzschia acicularis
Contributor: Pat Kociolek
Reviewer: Sarah Spaulding
Image Credit: Pat Kociolek
- Valves extremely long, narrow
- Apices straight
- Valve margins nearly at valve center
- Striae extremely fine
Valves are very lightly silicified. Apices are extremely long, narrow, and straight. At the center of the valve, the margins are nearly parallel. The striae are extremely fine.
Compare
Nitzschia acicularis has straight attenuated apices, while the attenuated apices of N. reversa are curved in opposite directions.
Nitzschia reversa
Citations
Kützing, F.T. (1844). Die kieselschaligen Bacillarien oder Diatomeen. Nordhausen. 152 pp., 30 pls.
Smith, W. (1853). Synopsis of British Diatomaceae. John Van Voorst, London 1853. 89 pp., pls 1-31.
Links & ID's
Index Nominum Algarum (INA)
California Academy of Sciences (CAS)
North American Diatom Ecological Database (NADED)
NADED ID: 48002