Algal factsheet: Gyrosigma (Pleurosigmataceae)
Diagnostic features
Valves identical, each possessing a raphe (genus is biraphid). Sigmoid or propeller-shaped in valve view (raphe also sigmoid) and boat-shaped in girdle view. Striae form rows in both perpendicular and parallel directions with respect to the long axis of the cell. Chloroplasts golden-brown.Typical habitats
Stony and muddy habitats, including nutrient enriched sitesClassification
| Kingdom | Chromista |
|---|---|
| Phylum | Ochrophyta |
| Subphylum | Khakista |
| Class | Bacillariophyceae |
| Order | Naviculales |
| Family | Pleurosigmataceae |
| Common name | Diatoms |