Oscillatoria / Planktothrix

General Description

  • Oscillatoria and Planktothrix are arranged as long, cylindrical filaments
  • These filaments do not contain heterocysts. Sometimes, short vegetative segments of these can be seen, these are referred to as horomogones or trichomes
  • Cells are rigidly divided and may or may not have a gelatinous sheath
  • Planktothrix rubescence formerly known as Oscillatoria
  • Colors vary from red, blue-green, yellow-brown, purple (some photos here are polarized and are not actually their true color)
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