Name: Hapalosiphon Nägeli ex Bornet and Flahault 1886

Category: Genus

Proposed as: gen. nov.

Etymology: N.L. masc. n. Hapalosiphon

Gender: masculine (stem: Hapalosiphon-)

Type species: Hapalosiphon pumilus Kirchner ex Bornet and Flahault 1886

Valid publication: Bornet É, Flahault C. Revision des Nostocacées hétérocystées contenues dans les principaux herbiers de France (Troisième fragment). Annales des Sciences Naturelles, Botanique, Septième série 1886; 5:51-129.

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

Taxonomic status: correct name

• Synonyms:

  • Name	Kind
    Hapalopsis Kufferath 1942	heterotypic synonym, validly published under the ICN (Botanical Code)
    Sommierella Borzì 1907	heterotypic synonym, validly published under the ICN (Botanical Code)

• Notes:
  • 🥇 Nomenclatural type of the family Hapalosiphonaceae Elenkin 1916. Publication: Elenkin AA. O znachenii nastoyashchago i lozhnago vetvleniya u sinezelenykh vodoroslej v sem. Stigonemataceae. Izviestiia Imperatorskago Sankt-Peterburgskago botanicheskago sada 1916; 16:272-280.
  • 🧕 Geitler (1925) assigned this genus to the family Stigonemataceae corrig. (Agardh ex Bornet and Flahault 1886) Borzì 1892. Publication: Geitler L. Synoptische Darstellung der Cyanophyceen in morphologischer und systematischer Hinsicht. Beihefte zum Botanischen Centralblatt 1925; 41:163-294.
  • 🧕 West (1904) assigned this genus to the family Stigonemaceae (Agardh ex Bornet and Flahault 1886) Borzì 1892. Publication: West GS. A treatise on the British freshwater algae. Cambridge University Press, Cambridge, 1904.
  • 🧒 Hansgirg (1888) assigned the subgenus "Euhapalosiphon" to this genus. Publication: Hansgirg A. Synopsis generum subgenerumque Myxophycearum (Cyanophycearum) hucusque cognitorum cum descriptione generis nov. " Dactylococcopsis ". Notarisia 1888; 3:584-590.
  • 🙄 This taxon name is occasionally misprinted (or affected by an OCR error) in some sources as: "Hapalosiphonis"; "Hapalosiphox"; "Hapalosyphon".
  • 🧍 Pittman et al. (1991) suggested the abbreviation "HPSF" 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.
  • 🧍 See also Borge (1906). Publication: Borge O. Beiträge zur Algenflora von Schweden. Arkiv für Botanik 1906; 6:1-88.

Subdivision:

Number of child taxa with a validly published and correct name: 27
Number of child taxa with a validly published name, including synonyms: 29
Total number of child taxa: 36

• Child taxa:

  • Name	Nomenclatural status	Taxonomic status
    Hapalosiphon ambiguus (Kützing 1849) Borzì 1917	validly published under the ICN (Botanical Code)	correct name
    Hapalosiphon arboreus West and West 1894	validly published under the ICN (Botanical Code)	correct name
    Hapalosiphon aureus West and West 1897	validly published under the ICN (Botanical Code)	correct name
    Hapalosiphon baronii West and West 1895	validly published under the ICN (Botanical Code)	correct name
    Hapalosiphon brasiliensis Borge 1918	validly published under the ICN (Botanical Code)	correct name
    "Hapalosiphon byssoideus" Kirchner ex Engler 1892	not validly published	preferred name (not correct name)
    Hapalosiphon confervaceus Borzì 1892	validly published under the ICN (Botanical Code)	correct name
    Hapalosiphon conradii (Kufferath 1942) Compère 1985	validly published under the ICN (Botanical Code)	correct name
    Hapalosiphon cossyrensis (Borzì 1917) Komárek 2012	validly published under the ICN (Botanical Code)	correct name
    Hapalosiphon delicatulus West and West 1902	validly published under the ICN (Botanical Code)	correct name
    Hapalosiphon fertilissima Tiwari 1973	inaccurate spelling (ICN [Botanical Code])	misspelling
    "Hapalosiphon fertilissima" Tiwari 1972	not validly published	preferred name (not correct name)
    Hapalosiphon fertilissimus corrig. Tiwari 1973	validly published under the ICN (Botanical Code)	correct name
    Hapalosiphon flexuosus Borzì 1892	validly published under the ICN (Botanical Code)	correct name
    Hapalosiphon fontinalis (Linnaeus 1753) Bornet 1889	validly published under the ICN (Botanical Code)	correct name
    Hapalosiphon godwardii (Prasad and Srivastava 1964) Komárek 1989	validly published under the ICN (Botanical Code)	correct name
    Hapalosiphon hibernicus West and West 1896	validly published under the ICN (Botanical Code)	correct name
    Hapalosiphon hormocystophorus Böcher 1950	validly published under the ICN (Botanical Code)	correct name
    Hapalosiphon intricatus West and West 1894	validly published under the ICN (Botanical Code)	correct name
    Hapalosiphon laminosus Hansgirg ex Bornet and Flahault 1886	validly published under the ICN (Botanical Code)	synonym
    "Hapalosiphon laminosus" (Cohn 1863) Hansgirg 1885	not validly published	synonym (and no standing)
    Hapalosiphon luteolus West and West 1897	validly published under the ICN (Botanical Code)	correct name
    Hapalosiphon major (Gomont 1898) Borzì 1917	validly published under the ICN (Botanical Code), illegitimate name, later homonym	synonym
    Hapalosiphon major Tilden 1896	validly published under the ICN (Botanical Code)	correct name
    Hapalosiphon muscicola (Thuret 1875) Borzì 1917	validly published under the ICN (Botanical Code)	correct name
    Hapalosiphon notabilis Beck-Mannagetta 1931	validly published under the ICN (Botanical Code)	correct name
    Hapalosiphon pumilus Kirchner ex Bornet and Flahault 1886	validly published under the ICN (Botanical Code)	correct name
    Hapalosiphon rhodesicum Welsh 1962	inaccurate spelling (ICN [Botanical Code])	misspelling
    Hapalosiphon rhodesicus corrig. Welsh 1962	validly published under the ICN (Botanical Code)	correct name
    "Hapalosiphon santannae" Lemes da Silva et al. 2010	not validly published	preferred name (not correct name)
    Hapalosiphon schweickerdtii Cholnoky 1952	validly published under the ICN (Botanical Code)	correct name
    Hapalosiphon stuhlmannii Hieronymus 1895	validly published under the ICN (Botanical Code)	correct name
    Hapalosiphon subgelatinosus Gardner 1927	validly published under the ICN (Botanical Code)	correct name
    Hapalosiphon tenuis Gardner 1927	validly published under the ICN (Botanical Code)	correct name
    "Hapalosiphon thermalis" (Schwabe 1837) Borzì 1917	not validly published	synonym (and no standing)
    Hapalosiphon welwitschii West and West 1897	validly published under the ICN (Botanical Code)	correct name

Parent taxon: Hapalosiphonaceae Elenkin 1916

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.

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Record number: 6408