Name: "Prochloron didemni" (ex Lewin 1977) Florenzano et al. 1986

Category: Species

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

Etymology: di.dem’ni. N.L. gen. neut. n. didemni, of Didemnum (a zoological scientific genus name)

Pronunciation (Latin), gender: pro-K^HLO-ron di-DEM-ni, neuter

Nomenclatural type: BM; no culture available

Original publication: Florenzano G, Balloni W, Materassi R. Nomenclature of Prochloron didemni (Lewin 1977) sp. nov., nom. rev., Prochloron (Lewin 1976) gen. nov., nom. rev., Prochloraceae fam. nov., Prochlorales ord. nov., nom. rev. in the class Photobacteria Gibbons and Murray 1978. Int. J. Syst. Bacteriol. 1986; 36:351-353.

Nomenclatural status: not validly published

Taxonomic status: synonym (and no standing)

Correct name: Prochloron didemni Lewin ex Hoffmann and Greuter 1993

Risk group: 1

• Synonyms:

  • Name	Kind
    Prochloron didemni Lewin ex Hoffmann and Greuter 1993	homotypic synonym, validly published under the ICN (Botanical Code)
    "Prochloron didemni" (Lewin 1975) Lewin 1977	homotypic synonym, not validly published
    "Synechocystis didemni" Lewin 1975	homotypic synonym, not validly published

• Notes:
  • 🥇 Nomenclatural type of the genus "Prochloron" (ex Lewin 1977) Florenzano et al. 1986. Publication: Florenzano G, Balloni W, Materassi R. Nomenclature of Prochloron didemni (Lewin 1977) sp. nov., nom. rev., Prochloron (Lewin 1976) gen. nov., nom. rev., Prochloraceae fam. nov., Prochlorales ord. nov., nom. rev. in the class Photobacteria Gibbons and Murray 1978. Int. J. Syst. Bacteriol. 1986; 36:351-353.
  • 😷 The risk group for Canada has been imported on 2024-02-27. The full classification is: risk group = 1, note = "Security sensitive biological agent: No - Terrestrial animal pathogen under Canadian Food Inspection Agency authority: No". — The risk group for Swiss Confederation has been imported on 2024-02-01. The full classification is: risk group = 1. — The risk group for Germany has been imported on 2026-08-13. The full classification is: risk group = 1. — If in doubt, use the risk group given in the regulations for your country and, if these are not available, use the risk group given in the catalogue of the culture collection from which you have obtained or intend to obtain the strain.
  • 🎓 Name mentioned 17 times in PubMed until 2024-03-27.
  • 🧍 According to Yarza et al. (2013), an "un-sequenced orphan species where descriptions, illustrations or dead preserved material serve as the type. Is a homonym of botanical name." (It is actually an isonym.). Publication: Yarza P, Sproer C, Swiderski J, Mrotzek N, Spring S, Tindall BJ, Gronow S, Pukall R, Klenk HP, Lang E, et al. Sequencing orphan species initiative (SOS): Filling the gaps in the 16S rRNA gene sequence database for all species with validly published names. Syst Appl Microbiol 2013; 36:69-73. 🇩🇪
  • 🧍 Considered not validly published. No nomenclatural type indicated. Publication: Hoffmann L, Greuter W. Validation of Prochloron didemni (Cyanophyta) and nomenclatural discussion of correlated names at the higher ranks. TAXON 1993; 42:641-645.
  • 🧍 Previously, the species name Prochloron didemni was thought to be validly published under the Botanical Code by Lewin (1977). Publication: Staley JT, Bryant MP, Pfennig N, Holt JG. Editorial note. In: Staley JT, Bryant MP, Pfennig N, Holt JG (eds), Bergey's Manual of Systematic Bacteriology, first edition, vol. 3, The Williams & Wilkins Co., Baltimore, 1989, p. 1799.

Parent taxon: "Prochloron" (ex Lewin 1977) Florenzano et al. 1986

Assigned by: Florenzano G, Balloni W, Materassi R. Nomenclature of Prochloron didemni (Lewin 1977) sp. nov., nom. rev., Prochloron (Lewin 1976) gen. nov., nom. rev., Prochloraceae fam. nov., Prochlorales ord. nov., nom. rev. in the class Photobacteria Gibbons and Murray 1978. Int. J. Syst. Bacteriol. 1986; 36:351-353.

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Record number: 784691

• Previous versions:

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    1	2026-03-31