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Under construction
Taxon: Genus "Stigonema" Agardh ex Bornet and Flahault 1886 nom. inval. (prokaryote)
 Entity: 

Authorship

SN2000 author citation:  C.A. Agardh, 1824 ex E. Bornet & C. Flahault, 1887[1886], nom. prok. post., nom. praeinit.
Subsequent use as a prokaryotic name:  Boone, D.R. & Castenholz, R.W. (eds.) 2001. In G.M. Garrity (ed.), Bergey's Man. Syst. Bacteriol. (ed. 2) 1: 591 (L. Hoffmann & R.W. Castenholz: key), 599 (L. Hoffmann & R.W. Castenholz: "Form-genus ... Agardh 1824").

Etymology

Derived name: Stigonematales (Order) (ex Geitler 1925) Cavalier-Smith 2002 nom. illeg., nom. rej. Ref: T. Cavalier-Smith, 2002a: tbl. 1 (p. 11). [new]

Attributes

Prokaryotic name, by subsequent use (: nom. prok. post.) [ICNB/ICNP] Ref: S.J. Brands (comp.), 1989-present. Syst. Nat. 2000: 7 Dec 2025.
Prokaryotic name (: nom. prok.) [ICNB/ICNP] Ref: D.R. Boone & R.W. Castenholz (eds.), 2001. In G.M. Garrity (ed.), Bergey's Man. Syst. Bacteriol. (ed. 2) 1: 599 (L. Hoffmann & R.W. Castenholz). [implicit]
Effectively, but not validly, published name (nom. inval.) [ICNP, 2019: Rule 25, App. 7 (IJSEM)] Ref: G.M. Garrity et al. 2007. Taxon. Outl. Bacteria Archaea (v. 7.7, pt. 2): 49.
Pre-starting-point name (nom. inval.[: praeinit.]) [ICNP, 2022: Rule 30 (Cyanobacteria(ICN), <2021)] Ref: S.J. Brands (comp.), 1989-present. Syst. Nat. 2000: 7 Dec 2025.

Types

Type, by original designation, of: Stigonematales (Order) (ex Geitler 1925) Cavalier-Smith 2002 nom. illeg., nom. rej. Ref: T. Cavalier-Smith, 2002a: tbl. 1 (p. 11). [new]

Variants

Validly published name: Stigonema (Genus) Agardh ex Bornet and Flahault 1886 Ref: LPSN, 2020-present: [1 Feb 2026]; 1 Feb 2026. [inferred]
Name in original code of nomenclature: Stigonema (Genus) C.Agardh ex Bornet & Flahault (1886)
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Last updated: 28 Aug 2026