Images
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LM image scalebar = 10 µm = pixels not measured
Observations
| Observations: | Bart Van de Vijver |
|---|---|
| Length: | 14-20µm |
| Width: | 5-7µm |
| Striae: | transapical striae radiate 20-28 in 10µm |
Description:
Valves elliptical with rostrate to subcapitate apices. Two different forms can be found, one with 3-4 undulated borders and one with parallel or convex margins (L 14 20µm, W 5-7µm, transapical striae radiate 20-28 in 10µm, consisting in SEM of one row of areolae). RV: axial area lanceolate, raphe branches straight but terminates internally into opposite directions. Central area rectangular bordered by 6-8 short striae. ARV: axial area lanceolate, no interruption of the striae in the central area.
| Morphology: | Monoraphid |
|---|---|
| Distribution: |
Autecology:
Notes:
Rarely found in relatively dry mosses, dry soils and the sediment of brooklets and small, alkaline pools. There is no clear distinction in ecology between the nominate species and the former variety elliptica.Kerguelen (Bourrelly & Manguin 1954, Larson 1974, Le Cohu & Maillard 1983), South Shetland Islands (Schmidt et al. 1990), Macquarie Island (McBride et al. 1999).Due to the large similarity between A. manguinii and A. manguinii var. elliptica, Lange-Bertalot & Krammer (1989) considered var . elliptica only to be a morphological form of the nominate species. This observation has already been made by Le Cohu and Maillard (1983) although they keep the var. elliptica as a separate taxon. We decided to include the variety within the nominate species since a broad continuum between the two forms could be found in the samples.
Other sites with Psammothidium manguinii
- Ile de la Possession (moist habitats), Crozet Archipelago
Original Type Description
| Author: | Hustedt 1952 |
|---|---|
| Length: | |
| Width: | |
| Striae: |
Original Description:
New combination
| Author: | Van de Vijver |
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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).
