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Guide to Nupela vitiosa

(Schim.) Siver and Hamilton 2005

Nupela Vitiosa Guide
Credit: Marina Potapova
  1. Valves linear-elliptical-lanceolate
  2. Central area elliptical usually asymmetrically expanded to one side
  3. Striae 35-40 in 10 μm

Valves are linear-elliptical-lanceolate with rounded slightly drawn-out ends. Axial area is narrowly linear. Central area is elliptical or round, usually asymmetrically expanded to one side of the valve. Striae are radiate in the middle, slightly convergent at apices, 35-40 in 10 μm.