Name: Stigonematales (ex Geitler 1925) Cavalier-Smith 2002

Category: Order

Proposed as: ord. nov., nom. rev.

Etymology: Sti.go.ne.ma.ta’les. N.L. neut. n. Stigonema, type genus of the order; L. fem. pl. n. suff. -ales, ending to denote an order; N.L. fem. pl. n. Stigonematales, the Stigonema order

Pronunciation, gender: sti-go-ne-ma-TA-les, feminine

Type genus: Stigonema Agardh ex Bornet and Flahault 1886

Valid publication: Cavalier-Smith T. The neomuran origin of archaebacteria, the negibacterial root of the universal tree and bacterial megaclassification. Int J Syst Evol Microbiol 2002; 52:7-76. 🇬🇧

IJSEM list: Anonymous. Notification list. Notification that new names and new combinations have appeared in volume 52, part 1 of the IJSEM. Int J Syst Evol Microbiol 2002; 52:293-295.

Nomenclatural status: validly published under the ICNP, rejected name

Taxonomic status: synonym

Correct name: Nostocales corrig. Borzì 1914

• Synonyms:

  • Name	Kind
    "Nostochinae" Endlicher 1836	heterotypic synonym, inaccurate spelling
    Nostochinae Borzì 1914	heterotypic synonym, inaccurate spelling (ICN [Botanical Code])
    "Nostochineae" Thuret 1886	heterotypic synonym, inaccurate spelling
    Nostocales corrig. Borzì 1914	heterotypic synonym, validly published under the ICN (Botanical Code)
    Stigonematidea Walton 1931	homotypic synonym, inaccurate spelling (ICN [Botanical Code])
    Nostocales Cavalier-Smith 2002	heterotypic synonym, validly published under the ICNP, rejected name
    Kenellales Korde 1973	heterotypic synonym, validly published under the ICN (Botanical Code), illegitimate name
    Nostocidea Walton 1931	heterotypic synonym, inaccurate spelling and illegitimate (ICN [Botanical Code])
    "Nostocales" corrig. Thuret 1886	heterotypic synonym, not validly published
    Nostocales Geitler 1925	heterotypic synonym, validly published under the ICN (Botanical Code), illegitimate name
    Nostocales corrig. Walton 1931	heterotypic synonym, validly published under the ICN (Botanical Code), illegitimate name
    Stigonematales corrig. Walton 1931	homotypic synonym, validly published under the ICN (Botanical Code)

• Notes:
  • 🚃 The type genus of this order has alternatively been placed in the order Chroococcales corrig. Ardissone 1886. Publication: Bennett AW, Murray G. A handbook of cryptogamic botany. Longmans, Green & Co., London, 1889.
  • 🙄 This taxon name is occasionally misprinted (or affected by an OCR error) in some sources as: "Sfigonematales"; "Sigonematales"; "Siigonematales"; "Sligonematales"; "Stigenematales"; "Stigmzemafales"; "Stigoncmatales"; "Stigoneamtales"; "Stigonemafales"; "Stigonemaiales"; "Stigonemalales"; "Stigonemales"; "Stigonemarales"; "Stigonemeatales"; "Stigonemetales"; "Stigonetnatales"; "Stigonwnatales"; "Stigosematales"; "Stigunemafales"; "Stionematales"; "Stygonematales".
  • 🧍 Cyanobacteria validly published under the bacteriological code. Publication: Oren A, Arahal DR, Goker M, Moore ERB, Rossello-Mora R, Sutcliffe IC. International Code of Nomenclature of Prokaryotes. Prokaryotic Code (2022 Revision). Int J Syst Evol Microbiol 2023; 73:5585. 🇮🇱
  • 🧍 Rejected Name (Judicial Commission, Opinion 79 suppl.; IJSEM 64: 3599–3602). Publication: Tindall BJ. Names at the rank of class, subclass and order, their typification and current status: Supplementary information to Opinion 79. Judicial Commission of the International Committee on Systematics of Prokaryotes. Int J Syst Evol Microbiol 2014; 64:3599-3602. 🇩🇪
  • 🧍 The type genus "Stigonema" does not appear on the Approved Lists of Bacterial Names, and has not been validly published since 1 January 1980. Consequently, Stigonematales Cavalier-Smith 2002 is illegitimate. — In the paper by Cavalier-Smith 2002, the order Stigonematales is cited as Stigonematales Cavalier-Smith 2002, ord. nov. Publication: Skerman VBD, McGowan V, Sneath PHA. Approved lists of bacterial names. Int J Syst Bacteriol 1980; 30:225-420.

Parent taxon: Chroococcophyceae Hollerbach et al. 1953

Assigned by: LPSN automated production system. The following publication is only one of the sources consulted. It may or may not mention this taxon name. — Aleksovski B, Krstić S, Guiry MD. The names of phyla and classes of blue-green algae (cyanobacteria, cyanophytes) and a typified name: Cyanobacteriophyta Oren, Mareš et Rippka. Fottea 2025; 25:212-217. 🇮🇪

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Record number: 5196