Images
Click any image to enlarge...
LM image scalebar = 10 µm = pixels not measured
Observations
| Observations: | Bart Van de Vijver |
|---|---|
| Length: | 27-54µm |
| Width: | 8-10µm |
| Striae: | 11-15 striae in 10µm |
Description:
Valves clavate with broadly rounded, not protracted, head poles and clearly narrowing foot poles (L 27-54µm, W 8-10µm, 11-15 striae in 10µm, ± 30 areolae in 10µm). Raphe strongly lateral with simple (sometimes weakly rounded) central and clear terminal endings. Axial area fairly narrow, linear. Central area unilaterally elongated due to one (sometimes 2) shortened striae. Stigma close to the longer stria on the opposite side. Transapical striae weakly radiate, more parallel to slightly convergent near the head pole. Around the terminal area of the head pole, several shortened striae can be observed.
| Morphology: | Cymbelloid |
|---|---|
| Distribution: |
Autecology:
Notes:
G. stonei is commonly reported on Ile de la Possession in soil, moss and water samples but never in high frequencies. The highest abundance (i.e. 6%) has been reached in relatively dry, acid soils with moderate specific conductance values and nutrient concentrations.Due to the recent description of this taxon, it does not appear yet in the litterature of the (Sub-)Antarctic diatoms.Although on Kerguelen G. affine Kützing has been found, we believe that based on the number of striae and the general valve outline, the observed valves all belong to G. stonei. Nearly all observations of G. affine made in Van de Vijver & Beyens (1998b, 1999a, 1999b) are in fact records of G. stonei.
Other sites with Gomphonema stonei
- Ile de la Possession (moist habitats), Crozet Archipelago
Original Type Description
| Author: | Reichardt 1999 |
|---|---|
| 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).
