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Guide to Gomphonema kobayasii

Kociolek and Kingston 1999

Gomphonema Kobayasii Guide
Credit: Pat Kociolek
  1. Valves linear-clavate
  2. Axial area narrow at poles, widening toward the central area
  3. Central striae more widely spaced

Valves are linear-clavate with headpole rounded and footpole narrowly rounded. The striae are strongly radiate at the footpole. The axial area is narrow at poles, widening toward the central area. The central area is broadly rectangular with shortened striae on either side. A single stigma is located in the central area.