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Guide to Fallacia vitrea

(Østrup) D.G.Mann in Round, R.M.Crawford and D.G.Mann 1990

Fallacia Vitrea Guide
Credit: Ian Bishop
  1. Valves lanceolate
  2. Conopeum lanceolate
  3. Longitudinal lines present within conopeum
  4. Striae radiate

Valves are lanceolate. A large, lanceolate canopeum covers between 1/2 and 3/4 of the valve face. Longitudinal lines are present within the canopeum, near the canopeum margin. Striae are radiate throughout.