Nitzschia acidoclinata

Taxon ID: 194
Author: Lange-Bertalot 1988   
Basionym:
Synonym:

 

Images

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LM image scalebar = 10 µm = pixels not measured     

 

Observations

Observations: Bart Van de Vijver
Length: 18-50µm
Width: 2-3µm
Striae: 9-14 fibulae in 10µm

Description:

Valves linear to linear-lanceolate in the longer valves. The middle part is usually weakly concave. Ends cuneately rounded (L 18-50µm, W 2-3µm, 9-14 fibulae in 10µm). Raphe keel with fairly regularly placed fibulae, the two in the middle more spaced than the others. Transapical striae quite visible in LM, 22-32 in 10µm.

Morphology: Nitzschioid
Distribution:

Autecology:

 

Notes:

Common in both freshwater and moss samples. Seems to prefer wet terrestrial mosses (F-value III-IV). No strict preference for a specific watertype has been found. Valves were observed in alkaline rivers but also in acid pools. Conductivity ranged from 60 to 200µS/cm. The different populations (or morphotypes) did not show ecological differences.South Georgia (Van de Vijver & Beyens 1996, 1997a), Maritime Antarctic Region (Van de Vijver & Beyens 1997b).Usually identified as N. frustulum (see below). Manguin (in Bourrelly & Manguin 1954) described a var. kerguelenensis from nearby Kerguelen Archipelago. Based on detailed SEM investigations of what is considered to be the var. kerguelenensis, we conclude that it might be similar to N. acidoclinata. When this is actually the case, it is possible that N. acidoclinata should be considered as a younger synonym of N. frustulum var. kerguelenensis Manguin.

 

 

Other sites with Nitzschia acidoclinata

  • Ile de la Possession (moist habitats), Crozet Archipelago

Original Type Description

Author: Lange-Bertalot 1988
Length:
Width:
Striae:

Original Description:

 

New combination

Author:

 

Citations

Index Nominum Algarum (INA):

  • Original
  • If an INA link is available, it will be shown above
  • The INA is a bibliographic reference "card file" for algal taxonomy, containing nearly 200,000 names of algae (in the broad sense).

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