Geissleria subantarctica

Taxon ID: 163
Author: Van de Vijver & Le Cohu    
Basionym:
Synonym:

 

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LM image scalebar = 10 µm = pixels not measured     

 

Observations

Observations: Bart Van de Vijver
Length: 18-23µm
Width: 6-7µm
Striae: 16-18 in 10µm

Description:

Valves elliptical to linear-elliptical with broadly rounded, not or only slightly protracted ends (L 18-23µm, W 6-7µm). Raphe filiform with weakly expanded central pores. Axial area narrow, linear. Central area transapically expanded due to 1 or 2 shortened striae. No stigma present near the central nodule. Transapical striae throughout moderately radiate, 16-18 in 10µm. Three to five punctually reduced striae present near the valve end.

Morphology: Naviculoid
Distribution:

Autecology:

 

Notes:

Rare on Ile de la Possession. Found in one relatively dry (± 40%) bare soil sample, covered with some small stones, in the vicinity of Pointe Basse. In one peat core, G. subantarctica and G. taafii (see below) are frequently observed, especially in the upper 50cm.Kerguelen (Van de Vijver & Le Cohu (subm.))

 

 

Other sites with Geissleria subantarctica

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

Original Type Description

Author: Van de Vijver & Le Cohu
Length: 18-23µm
Width: 6-7µm
Striae: 16-18 in 10 µm

Original Description:

 

New combination

Author:

 

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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