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LM image scalebar = 10 µm = pixels not measured
Observations
| Observations: | Bart Van de Vijver |
|---|---|
| Length: | 14,5-21,5µm |
| Width: | 4,5-6µm |
| Striae: | 10-18 striae in 10µm |
Description:
Valves weakly clavate, sometimes even lanceolate-elliptical. The largest width is found above the middle. The head poles are usually slightly protracted and flatly rounded while the foot poles are more or less sharply narrowed (L 14,5-21,5µm, W 4,5-6µm, 10-18 striae in 10µm). Axial area linear, narrow. Central area unilaterally weakly elongated due to 1 or 2 shortened striae (sometimes striae are not shortened!). Raphe lateral to sometimes filiform with almost unmarked terminal and central endings. Transapical striae moderately radiate to parallel. Individual areolae sometimes resolvable in LM but most of the times impossible to see. Stigma, when present, close to longest stria in the middle.
| Morphology: | Cymbelloid |
|---|---|
| Distribution: |
Autecology:
Notes:
Quite common on Ile de la Possession, but never reaching high frequencies. Sometimes confused with G. exilissimum. In soils, almost no observations were made. Seems to prefer lakes and pools with higher specific conductance and nutrient values (influenced by animal input).Widespread in the entire (Sub-)Antarctic Region.
Other sites with Gomphonema parvulum var. parvulum
- Ile de la Possession (moist habitats), Crozet Archipelago
Original Type Description
| Author: | Kützing 1991 |
|---|---|
| Length: | |
| Width: | |
| Striae: |
Original Description:
New combination
| Author: |
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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).
