Diploneis subovalis

Taxon ID: 140
Author: Cleve 1986   
Basionym:
Synonym:

 

Images

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LM image scalebar = 10 µm = pixels not measured     

 

Observations

Observations: Bart Van de Vijver
Length: 30-55µm
Width: 14-18µm
Striae: 10-13 striae in 10µm

Description:

Valves elliptical to linear-elliptical with broadly rounded ends (L 30-55µm, W 14-18µm, 10-13 striae in 10µm). Central area large. Raphe weakly lateral. Apical furrows linear, H-shaped with a large central nodule. Terminal fissures deflected. Central raphe endings expanded, clearly visible. Longitudinal canal bordered by a row of large areolae, isolated from the transapical striae. Striae in the middle slightly radiate to very radiate near the poles. Areolae in the striae always placed in quincunx.

Morphology: Naviculoid
Distribution:

Autecology:

 

Notes:

Fairly common on Ile de la Possession in moss, relatively dry soil and water samples, never reaching an abundance of more than 5%. Prefers a slightly acid habitat with higher specific conductance values. Mean F-value 3,8±1,9.Kerguelen (Germain 1937, Bourrelly & Manguin 1954, Larson 1974, Le Cohu & Maillard 1986, Van de Vijver et al. 1998a, 2001), South Georgia (Fukushima 1965, Van de Vijver 1996, 1997a), Crozet (Pierre 1977).

 

 

Other sites with Diploneis subovalis

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

Original Type Description

Author: Cleve 1986
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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