FIGURES 29–36 in A re-investigation of three Frenguelli's Caloneis taxa (Pinnulariaceae, Bacillariophyta) from Argentina

FIGURES 29–36. Caloneis mendosina Frenguelli (emend. Sar & Sunesen) from syntype material of C. quilinesis. LM. Figs 29–33. Valves linear-elliptic with triundulated margin to linear panduriform, note that distal undulations are wider than central undulation. Figs 30–31. The same specimen in different foci. Idem for figures 32–33. Fig. 34. Tilted frustule showing the hypovalve surrounded by the valvocopula. Figs 35–36. Different foci of a valve. Scale bars: 10 μm.