Pinnularia microstauron f. biundulata (Muller) Hustedt




Collection 1788

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Pinnularia microstauron f. binndulata (Muller) Hustedt 1930, p. 320, fig. 583(VanLandingham, S. L. 1971).

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This image was taken utilizing DIC.

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Valve linear with somewhat rostrate, wedge-shaped ends, or liear-elliptical with rounded ends. Axial area narrow. Central area a broad, transverse fascia. Striae radiate toward the middle of the valve, strongly convergent at the ends(Patrick and Reimer 1966).

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    Size ranges and morphology

  • Length is 12 to 22 micrometers (Patrick and Reimer 1966).
  • Width is 3 to 5 micrometers (Patrick and Reimer 1966).
  • Striae are 13 to 15 in 10 micrometers (Patrick and Reimer 1966).