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Taxon: Genus "Microcystis" Lemmermann 1907 nom. inval. (prokaryote)
 Entity: 

Authorship

SN2000 author citation:  E. Lemmermann, 1907, 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: 495 (M. Herdman, R.W. Castenholz, I. Iteman, J.B. Waterbury & R. Rippka: key), 505 (M. Herdman, R.W. Castenholz, I. Iteman & R. Rippka: "Form-genus ... Kützing ex Lemmermann 1907 nom. cons.").

Attributes

Prokaryotic name, by subsequent use (: nom. prok. post.) [ICNB/ICNP] Ref: S.J. Brands (comp.), 1989-present. Syst. Nat. 2000: 4 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: 505 (M. Herdman, R.W. Castenholz, I. Iteman & R. Rippka).
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): 44.
Pre-starting-point name (nom. inval.[: praeinit.]) [ICNP, 2022: Rule 30 (Cyanobacteria(ICN), <2021)] Ref: S.J. Brands (comp.), 1989-present. Syst. Nat. 2000: 4 Dec 2025.

Variants

Validly published name: Microcystis (Genus) Kützing ex Lemmermann 1907 nom. cons. Ref: LPSN, 2020-present: [10 Jan 2026]; 10 Jan 2026. [inferred]
Name in original code of nomenclature: Microcystis (Genus) Lemmerm. (1907), nom. cons.

Homonyms

Senior homonym (unavailable): Microcystis (Genus) Beck, 1837 Ref: S.J. Brands (comp.), 1989-present: 20 Aug 2021.
Senior homonym (unavailable): Microcystis (Genus) Kütz. (1833), nom. rej. Ref: S.J. Brands (comp.), 1989-present: 20 Aug 2021.
Senior homonym (unavailable): Microcystis (Subgenus) Beck, 1837 Ref: S.J. Brands (comp.), 1989-present: 29 Nov 2021.
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Last updated: 28 Aug 2026