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LM image scalebar = 10 µm = pixels not measured
Observations
| Observations: | Bart Van de Vijver |
|---|---|
| Length: | 17-30 µm |
| Width: | 4-6 µm |
| Striae: | 46-50 striae in 10µm |
Description:
Valves linear-lanceolate to linear with cuneately rounded apices, 17-30 µm long and 4-6 µm broad. Axial area narrow, central area a large rectangular stauros, reaching the valve margins. Transapical striae uniseriate, around the stauros slightly radiate, more distally parallel, finally convergent, not to resolve (LM) 46-50 in 10µm. Raphe straight, externally without clearly marked terminal and central fissures outside. Internally, helictoglossa 'porte-crayon'-like.
| Morphology: | Naviculoid |
|---|---|
| Distribution: |
Autecology:
Notes:
Frustulia cirisiae has been found in both soil and semi-wet terrestrial moss samples. The highest abundances (8%) were reached in samples from a slightly acid, dry soil in the vicinity of Baie Americaine. F. cirisiae seems to prefer fairly dry (24 ± 12 %) and slightly acid (pH 6-7) conditions.Described from Ile de la Possession. Distribution so far unknown.The presence of a large stauros resulted in the creation of a new subgenus for this taxon: Staurofrustulia Van de Vijver, Ledeganck & Beyens.
Other sites with Frustulia cirisiae
- Ile de la Possession (moist habitats), Crozet Archipelago
Original Type Description
| Author: | Van de Vijver |
|---|---|
| Length: | 17-30 µm |
| Width: | 4-6 µm |
| Striae: | 46-50 striae in 10 µm |
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).
