Sellaphora pupula Mann


Width :8


Collection 802

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Authority information

Sellaphora pupula Mann, D. G. The diatom genus Sellaphora: seperation from Navicula. Br. Phycol. J. 24:1-20 (Mann, D. G. 1989).

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This image was taken using DIC.

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This taxon has a linear-lanceolate valve with broad, rostrate ends. The axia area is narrow and the central area is a transverse fascia that almost reaches the margins of the valve. The terminal nodules transversly widened, and are marked by the end striae which are thicker than the rest. The terminal striae are parallel or slightly radiate and the striae in the center are distinctly radiate. The central area striae are short and irregular in length (Patrick and Reimer 1966).

  • Synonyms
    Navicula pupula Kutz., Bacill., p. 93, pl. 30, fig. 40. 1844 (Patrick and Reimer 1966).

  • Ecology
    This taxon prefers fresh, circumneutral water that has a high mineral content. It is halophilous (Patrick and Reimer 1966).

    Size ranges and morphology

  • Length is 20 to 40 micrometers (Patrick and Reimer 1966).
  • Width is 7 to 11 micrometers (Patrick and Reimer 1966).
  • Striae are 13 to 17 in 10 micrometers (Patrick and Reimer 1966).