Observations
Observations: | Bart Van de Vijver |
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Length: | 40-60µm |
Width: | 10-11µm |
Striae: | 9-10 striae in 10µm |
Description:
Valves clavate with broadly rounded, not protracted, head poles and clearly narrowing foot poles (L 40-60µm, W 10-11µm, 9-10 striae in 10µm). Raphe lateral with simple central and clear terminal endings. Axial area fairly broad, 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.
Morphology: | Cymbelloid |
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Distribution: |
Autecology:
Notes:
Due to confusion with G. stonei (see below), all observations of G. affine have been re-examined. Only in soil sample A285 valves clearly belonging to G. affine have been found.Kerguelen (Le Cohu & Maillard 1986, Van de Vijver et al. 1998a, 2001), Macquarie Island (McBride et al. 1999), South Georgia (Van de Vijver & Beyens 1996, 1997a).
Other sites with Gomphonema affine var. affine
- Ile de la Possession (moist habitats), Crozet Archipelago
Original Type Description
Author: | Kützing 1999 |
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Length: | |
Width: | |
Striae: |
Original Description:
New combination
Author: |
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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).