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Guide to Nitzschia regula var. robusta

Hust. 1924

Nitzschia Regula Var Robusta Guide
Credit: Loren Bahls
  1. Valves linear
  2. Apices short, wide, subcapitate
  3. Fibulae distinct, 9-12 in 10 µm
  4. Central nodule lacking
  5. Striae 23-25 in 10 µm

Valves are linear with short, wide, subcapitate apices. Fibulae are distinct and number 9-12 in 10 µm. A central nodule is lacking. Striae number 23-25 in 10 µm.