Chamaepinnularia sp.#2

Taxon ID: 121
Author: Kerguelen    
Basionym:
Synonym:

 

Images

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LM image scalebar = 10 µm = pixels not measured     

 

Observations

Observations: Bart Van de Vijver
Length: 8-11µm
Width: 2-3µm
Striae: 23-26 striae in 10µm

Description:

Valves elliptical to elliptical-lanceolate with rounded ends (L 8-11µm, W 2-3µm, 23-26 striae in 10µm). Axial area narrow, linear, widening into elliptical enlarged central area. The central area is bordered by several shortened striae. A fascia is lacking. Raphe filiform with distinct, sometimes weakly curved, central pores and hooked terminal fissures. Transapical striae radiate in the middle, parallel to convergent near the poles.

Morphology: Naviculoid
Distribution:

Autecology:

 

Notes:

Fairly common in larger, slightly acid lakes with low (<100µS/cm) specific conductance values.Kerguelen (Le Cohu, personal communication).This taxon presents all features typical for Chamaepinnularia. They are easily separated from similar taxa in the samples such as C. evanida or C. australomediacris, the latter having a large fascia. Nevertheless, a clear identification of this taxon could not be found. It is possible that we are dealing here with a new taxon. Further research sould clarify this.

 

McMurdo Dry Valleys Waterbodies with Chamaepinnularia sp.#2

  • Pond South of Nussbaum Riegel

 

Other sites with Chamaepinnularia sp.#2

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

Original Type Description

Author: Kerguelen
Length:
Width:
Striae:

Original Description:

 

New combination

Author: Le Cohu

 

Citations

Index Nominum Algarum (INA):

  • 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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