Name: Tychonema exospirum (Skuja 1956) Anagnostidis and Komárek 1988

Category: Species

Proposed as: comb. nov.

Basonym: Oscillatoria exospira Skuja 1956

Etymology: e.xo.spi’rum. Gr. prep. exô, outside; Gr. fem. n. speîra, a spiral; N.L. neut. adj. exospirum, having a spiral outside, referring to the colored part of the trichomes

Pronunciation (Latin), gender: ty-k^ho-NE-ma e-xo-SPI-rum, neuter

Valid publication: Anagnostidis K, Komarek J. Modern approach to the classification system of cyanophytes - 3 - Oscillatoriales. Arch. Hydrobiol. Suppl. 1988; 80, 1-4:327-472.

Nomenclatural status: validly published under the ICN (Botanical Code)

Taxonomic status: synonym

Correct name: Phormidium exospirum (Skuja 1956) Anagnostidis 2001

• Synonyms:

  • Name	Kind
    Oscillatoria exospira Skuja 1956	homotypic synonym, validly published under the ICN (Botanical Code)
    Phormidium exospirum (Skuja 1956) Anagnostidis 2001	homotypic synonym, validly published under the ICN (Botanical Code)

• Notes:
  • ❗ Tychonema exospirum is the correct name instead if this species is regarded as a separate species (i.e., if its nomenclatural type is not assigned to another species whose name is validly published, legitimate and not rejected and has priority) within a separate genus Tychonema.
  • 🎓 Name mentioned 0 times in PubMed until 2026-06-11.

Parent taxon: Tychonema Anagnostidis and Komárek 1988

Assigned by: Anagnostidis K, Komarek J. Modern approach to the classification system of cyanophytes - 3 - Oscillatoriales. Arch. Hydrobiol. Suppl. 1988; 80, 1-4:327-472.

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Record number: 27163