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Guide to Geissleria acceptata

(Hust.) Lange-Bert. and Metzeltin 1996

G Acceptata Guide
Credit: Marina Potapova
  1. Valve margin elliptic
  2. Striae radiate
  3. Two rows of annulae present
  4. Stigma may be present, or absent

Valves are small elliptic and small. The striae are radiate. Two rows of annulae are present at the poles, but may be difficult to discern. The presence of a stigma in the central area is a variable character within the species.