Name: Hormothamnion Grunow ex Bornet and Flahault 1886

Category: Genus

Proposed as: gen. nov.

Etymology: Hor.mo.tham.ni’on. Gr. masc. n. hormos, chain, necklace; Gr. neut. dim. n. thamnion, bush, shrub; N.L. neut. dim. n. Hormothamnion, a chain-like shrub

Gender, pronunciation (Latin): neuter (stem: Hormothamni-), hor-mo-t^ham-NI-on

Type species: Hormothamnion enteromorphoides Grunow ex Bornet and Flahault 1886

Valid publication: Bornet É, Flahault C. Revision des Nostocacées hétérocystées contenues dans les principaux herbiers de France (quatrième et dernier fragment). Annales des Sciences Naturelles, Botanique, Septième Série 1886; 7:177-262.

Nomenclatural status: validly published under the ICN (Botanical Code)

Taxonomic status: correct name

• Notes:
  • 🧕 Bornet and Flahault (1886) assigned this genus to the family Nostocaceae Eichler 1886. Publication: Bornet É, Flahault C. Revision des Nostocacées hétérocystées contenues dans les principaux herbiers de France (quatrième et dernier fragment). Annales des Sciences Naturelles, Botanique, Septième Série 1886; 7:177-262.
  • 🧕 Geitler (1925) assigned this genus to the family Microchaetaceae Lemmermann 1907. Publication: Geitler L. Synoptische Darstellung der Cyanophyceen in morphologischer und systematischer Hinsicht. Beihefte zum Botanischen Centralblatt 1925; 41:163-294.
  • 🧍 Pittman et al. (1991) suggested the abbreviation "HRTM" for this genus name but this does not appear to be of practical relevance any longer. Publication: Pittman KF, Walczak CA, Lock CM. Codes and abbreviations for approved of effectively published names of genera of bacteria published from January 1980 to December 1990. Int J Syst Bacteriol 1991; 41:571-579.

Subdivision:

Number of child taxa with a validly published and correct name: 2
Number of child taxa with a validly published name, including synonyms: 3
Total number of child taxa: 3

• Child taxa:

  • Name	Nomenclatural status	Taxonomic status
    Hormothamnion convolutum Collins and Hervey 1917	validly published under the ICN (Botanical Code)	correct name
    Hormothamnion enteromorphoides Grunow ex Bornet and Flahault 1886	validly published under the ICN (Botanical Code)	correct name
    Hormothamnion solutum Bornet and Grunow 1886	validly published under the ICN (Botanical Code)	synonym

Parent taxon: Aphanizomenaceae corrig. Elenkin 1938

Assigned by: Strunecky O, Ivanova AP, Mares J. An updated classification of cyanobacterial orders and families based on phylogenomic and polyphasic analysis. J Phycol 2023; 59:12-51. 🇨🇿

Linking: To permanently link to this page, use https://doi.org/10.83108/rn.6397Copy to clipboardLink copied to clipboard

Record number: 6397

• Previous versions:

  • Version	Date	JSON
    1	2026-03-31