Authorship

SN2000 author citation	:			R.A. Lewin, 1977 ex Florenzano et al., 1986, nom. prok. nov., nom. rev., nom. praeinit., typ. inval.
Unavailable original name, rank & spelling	:			Lewin, R.A. 1977b. Phycologia 16 (2): 217.
Original name, rank & spelling	:			Florenzano, G., Balloni, W. & Materassi, R. 1986. Int. J. Syst. Bacteriol. 36 (2): 352 ("fam. nov.").
Original use as a prokaryotic name	:			op. cit.: 351 ("International Code of Nomenclature of Bacteria").
Description/Diagnosis in English	:			op. cit.: 352 ("diagnosis").

Attributes

Prokaryotic name, by original use (: nom. prok. nov.) [ICNB/ICNP (>1947)]				Ref: L. Hoffmann & W. Greuter, 1993. Taxon 42 (3): 642.
Effectively, but not validly, published name (nom. inval.) [ICNP, 2019: Rule 25, App. 7 (IJSEM)]				Ref: LPSN, 2020-present. LPSN: [12 Jan 2026].
Pre-starting-point name (nom. inval.[: praeinit.]) [ICSB, 2000: Minute 7(3) (Cyanobacteria(ICNP), <1999)]				Ref: S.J. Brands (comp.), 1989-present. Syst. Nat. 2000: 11 Jan 2026.
Validly published name under the ICNP [ICNP, 2022: App. 7 (IJSEM)]				Ref: L. Hoffmann & W. Greuter, 1993. Taxon 42 (3): 643 ("validated by Florenzano & al. (1986)"). [false (12 Jan 2026)].
Type genus: not validly published (nom.[: typ.] inval.) [ICNP, 2022: Rules 21a, 27(3) (<=order)]				Ref: LPSN, 2020-present. LPSN: [12 Jan 2026]. [implicit]
Revived name (ex: nom. rev.) [ICNP, 2019: Rules 28a, 33c]				Ref: J.P. Euzéby, 1997-present: 4 Jun 2009.

Types

Type of	:	Prochlorales (Order) (ex Lewin 1977) Florenzano et al. 1986 nom. inval.		Ref: G. Florenzano et al., 1986: 351. [new]
Type, by original designation and monotypy	:	Prochloron (Genus) (ex Lewin 1977) Florenzano et al. 1986 nom. inval.		Ref: G. Florenzano et al., 1986: 352. [new]

Variants

Name in subsequent code of nomenclature	:	Prochloraceae (Family) Lewin ex Florenzano, Balloni & Materassi (1986), nom. inval.		Ref: L. Hoffmann & W. Greuter, 1993: 643. [new]
Name in preferred code of nomenclature	:	Prochloraceae (Family) Lewin ex Florenzano, Balloni & Materassi (1986), nom. inval.		Ref: L. Hoffmann & W. Greuter, 1993: 643. [new]

Synonyms

Accepted name (objective)	:	Prochloraceae (Family) Lewin (1977), nom. inval.
In	:	Microcystaceae (Family) Elenkin 1933		Ref: LPSN, 2020-present: [12 Jan 2026].