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Guide to Fallacia pygmaea

(Kütz.) Stickle and D.G.Mann in Round et al. 1990

Fallacia Pygmaea Guide
Credit: Pat Kociolek
  1. Valves broadly lanceolate
  2. Apices rounded
  3. Lyre-shaped hyaline area
  4. Striae finely punctate

Valves are broadly lanceolate with rounded apices. A lyre-shaped unornamented area bisects the striae on either side of the axial area, connecting to form the central area.