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Guide to Gomphoneis herculeana var. loweii

Kociolek and Stoermer 1988

Gomphoneis Loweii Guide
Credit: Pat Kociolek
  1. Vlaves trullate
  2. Apices broadly rounded
  3. Striae count variable across valve

Valves broadly trullate, with broadly rounded apices. Longitudinal lines of are positioned approximately one-half the way between the axial area and margin. The striae density varies across the valve: 8-12 in 10um in the center valve, 12-14 in 10 um at the headpole, 13-16 in 10 um at the footpole.

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