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Guide to Pinnularia subcapitata var. elongata

Krammer 1992

Pinnularia subcapitata elongata guide
  1. Apices subcapitate to rostrate
  2. Axial area narrow
  3. Central area rhombic

Valves are linear, with subcapitate to rostrate apices. The axial area is narrow. The central area is rhombic and broad. The raphe is lateral.

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