Tabellaria Flocculosa Guide
Credit: Dawn DeColibus, Sarah Spaulding
  1. Central valve inflation wide
  2. Hyaline central area
  3. Septae present
  4. Marginal spines

Valves with central valve inflation and capitate, to slightly capitate ends. The central inflation is wider than the terminal inflation. A hyaline area is present in the central valve. Marginal spines are present. A rimoportula is located near the central area. Regular and rudimentary septa are present on closed girdle bands.