Fragilaria husvikensis

Taxon ID: 156
Author: Van de Vijver, Denys & Beyens 2000   
Basionym:
Synonym:

 

Images

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LM image scalebar = 10 µm = pixels not measured     

 

Observations

Observations: Bart Van de Vijver
Length: 15-25µm
Width: 5-6,5µm
Striae: 26-30 striae in 10µm

Description:

Isopolar valves linear-lanceolate with slightly convex margins and capitate to subcapitate ends (width always smaller than general valve width) (L 15-25µm, W 5 6,5µm, 26-30 striae in 10µm). Axial area lacking. Striae, aligned with each other or alternating, perpendicular to the transapical axis, slightly radiate near the poles. Primary and secondary transapical ribs present between the striae and clearly visible (in contrast with the striae). Only one row of marginal spines detectable. One rimoportula and two apical porefields present. Girdle structure different from F. germainii, consisting of only 2 open bands.

Morphology: Araphid
Distribution:

Autecology:

 

Notes:

Rarely found on Crozet. pH-optimum 6,7.South Georgia (Van de Vijver et al. 2000), Kerguelen (Van de Vijver personal observation).see remark under F. germainii Reichardt & Lange-Bertalot about the classification of both taxa. More information on the distinction between F. germainii and F. husvikensis is given in Van de Vijver et al. (2000).

 

 

Other sites with Fragilaria husvikensis

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

Original Type Description

Author: Van de Vijver, Denys & Beyens 2000
Length: 15-25µm
Width: 5-6,5µm
Striae: 26-30 striae in 10 µm

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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