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Guide to Gomphonema gibba

J.H.Wallace 1960

Gomphonema Gibba Guide
Credit: Sylvia Lee, Mark Edlund
  1. Valves lanceolate-clavate
  2. Headpole narrowly rounded
  3. Axial area narrowly lanceolate
  4. Stigmoid in line with stria

Valves are lanceolate-clavate, with a narrowly rounded headpole and footpole. The axial area is narrow and lanceolate. A stigmoid is positioned in line with a stria.

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