Oestrupia zachariasi var. undulata (Schulz) comb. nov. 1969

Length: 30

Width: 9

Striae: 12

Collection 1565a

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Authority information

Stoerm. and Yang 1969 (Stoermer and Yang 1969).

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DIC image

This specimen of Oestrupia zachariasi var. undulata was found in South Fishtail Bay, Douglas Lake, February, 1973 by Dr. Norman Andresen.

Douglas Lake specimen, DIC

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Rarely found but more common than the nominate variety, this taxon has a similar distribution in the Great Lakes (Stoermer 1978).
  • Synonyms (Stoermer and Yang 1969)
    Caloneis baltica var. undulata Schulz, Bot. Arch., 13:203, fig. 76. 1926.

  • Ecology

    Size ranges and morphology