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Guide to Gomphonema pseudosphaerophorum

H.Kobayasi 1988

Gomphonema Pseudosphaerophorum Guide
Credit: Melissa Vaccarino
  1. Valves clavate
  2. Headpole distinct, capitate
  3. Footpole narrow
  4. Stigmoid near shortened stria

Valves are clavate and narrow. The headpole is distinctly capitate. The footpole is narrow and weakly subcapitate. An isolated stigmoid is positioned opposite a shortened stria.