Name: Phormidium Kützing ex Gomont 1892

Category: Genus

Proposed as: gen. nov.

Etymology: Gr. neut. n. phormion; N.L. neut. n. Phormidium

Gender: neuter (stem: Phormidi-)

Type species: Phormidium lucidum Kützing ex Gomont 1892

Conduct genome-based taxonomy of genus at TYGS

16S rRNA gene: Analyse FASTA

Valid publication: Gomont M. Monographie des Oscillariées (Nostocacées Homocystées) deuxiéme partie -Lyngbyées. Annales des Sciences Naturelles, Botanique, Série 7 1892; 16:91-264.

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

Taxonomic status: correct name

• Notes:
  • 🧕 Anagnostidis and Komarek (1988) assigned this genus to the family Phormidiaceae Anagnostidis and Komárek 1988. Publication: Anagnostidis K, Komárek J. Modern approach to the classification system of cyanophytes. 3. Oscillatoriales. Archiv für Hydrobiologie, Supplement 1988; 80:327-472.
  • 🧕 Hoffmann et al. (2005) assigned this genus to the family Phormidiaceae Anagnostidis and Komárek 1988. Publication: Hoffmann L, Komárek J, Kaštovský J. System of cyanoprokaryotes (cyanobacteria) – state in 2004. Algol. Stud. 2005; 117:95-115.
  • 🚋 The type species of this genus has alternatively been placed in the genus "Lyngbya" Agardh 1824. Publication: Bourrelly P. Les algues d'eau douce. Initiation à la systématique. Tome III: Les Algues bleues et rouges. Les Eugléniens, Peridiniens et Cryptomonadines. Boubée & Cie, Paris, 1970.
  • 🙄 This taxon name is occasionally misprinted (or affected by an OCR error) in some sources as: "Fhormidium"; "Mhormidium"; "Pbormidium"; "Pharmidium"; "Pharmidlum"; "Phcrmidium"; "Phermidium"; "Phnmidium"; "Phnrmidium"; "Phomzidium"; "Phonmidium"; "Phonnidium"; "Phopmidium"; "Phorinidium"; "Phorlnidium"; "Phormedium"; "Phormicdium"; "Phormiclium"; "Phormidietum"; "Phormidinm"; "Phormidiura"; "Phormidiwn"; "Phormidjum"; "Phormidlum"; "Phormidr"; "Phormidum"; "Phormidvlum"; "Phormidzum"; "Phormiitium"; "Phormirlium"; "Phormjdium"; "Phormldlum"; "Phormzdium"; "Phorniidium"; "Phorntidium"; "Phornzidium"; "Phorrmidium"; "Phorrnidium"; "Photmidium"; "Phownidium"; "Phromidium"; "Phunnidium"; "Phurmidium"; "Piiormidium"; "Pimrmidium"; "Pizormidium"; "Pkormidium"; "Pliormidium"; "Plrormidium"; "Pltormidium"; "Prormidium"; "Rhormidium"; "Rormidium".
  • 💁 Taxonomists who have recently focused on this group are the corresponding authors of Casamatta et al. (2012), Strunecky et al. (2020), Chatchawan et al. (2012). Editors in search of reviewers are advised to consider additional criteria such as whether a taxon is covered by one of the ICSP subcommittees.
  • 🎰 The BRCs most frequently used for deposits in this group are: DSM: 1; CCUG: 1; ULC: 1; CCALA: 1; ATCC: 1.
  • 🧍 Pittman et al. (1991) suggested the abbreviation "PHMD" 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: 137
Number of child taxa with a validly published name, including synonyms: 254
Total number of child taxa: 284

• Child taxa:

  • Name	Nomenclatural status	Taxonomic status
    Phormidium abronema Skuja 1949	validly published under the ICN (Botanical Code)	synonym
    Phormidium acidophilum Copeland 1936	validly published under the ICN (Botanical Code)	correct name
    Phormidium acula corrig. (Brühl and Biswas 1923) Anagnostidis and Komárek 1988	validly published under the ICN (Botanical Code)	correct name
    Phormidium acuminatum (Gomont 1892) Anagnostidis and Komárek 1988	validly published under the ICN (Botanical Code)	synonym
    Phormidium acutissimum (Kufferath 1914) Anagnostidis and Komárek 1988	validly published under the ICN (Botanical Code)	synonym
    Phormidium acutum (Brühl and Biswas 1923) Anagnostidis and Komárek 1988	inaccurate spelling (ICN [Botanical Code])	misspelling
    Phormidium aerugineocaeruleum (Gomont 1892) Anagnostidis and Komárek 1988	validly published under the ICN (Botanical Code)	synonym
    Phormidium africanum Lemmermann 1914	validly published under the ICN (Botanical Code)	synonym
    "Candidatus Phormidium alkaliphilum" Ataeian et al. 2021	not validly published	preferred name (not correct name)
    Phormidium allorgei (Frémy 1930) Anagnostidis and Komárek 1988	validly published under the ICN (Botanical Code)	correct name
    Phormidium ambiguum (Kützing 1843) Gomont 1892	validly published under the ICN (Botanical Code)	correct name
    "Phormidium amoenum" Kuetzing 1843	not validly published	synonym (and no standing)
    "Phormidium amoenum" Kützing ex Anagnostidis and Komárek 1988	not validly published	preferred name (not correct name)
    Phormidium amphibium (Agardh ex Gomont 1892) Anagnostidis and Komárek 1988	validly published under the ICN (Botanical Code)	synonym
    Phormidium anabaenoides Drouet 1961	validly published under the ICN (Botanical Code)	synonym
    Phormidium angustissimum West and West 1897	validly published under the ICN (Botanical Code)	synonym
    Phormidium animale (Agardh ex Gomont 1892) Anagnostidis and Komárek 1988	validly published under the ICN (Botanical Code)	synonym
    Phormidium anissimovae (Elenkin 1949) Vinogradova 2011	validly published under the ICN (Botanical Code)	correct name
    Phormidium anomala Rao 1937	inaccurate spelling (ICN [Botanical Code])	misspelling
    Phormidium anomalum corrig. Rao 1937	validly published under the ICN (Botanical Code)	synonym
    Phormidium antarcticum West and West 1911	validly published under the ICN (Botanical Code)	synonym
    Phormidium aqualimpidense corrig. (Senna and Ferreira 1986) Azevedo 1991	validly published under the ICN (Botanical Code)	synonym
    Phormidium aqualimpidensis (Senna and Ferreira 1986) Azevedo 1991	inaccurate spelling (ICN [Botanical Code])	misspelling
    Phormidium arboricola Lemes da Silva et al. 2010	validly published under the ICN (Botanical Code)	correct name
    Phormidium arcuatum Skuja 1948	validly published under the ICN (Botanical Code)	synonym
    Phormidium arthrospiroides (Virieux 1914) Anagnostidis and Komárek 1988	validly published under the ICN (Botanical Code)	correct name
    Phormidium arthurense corrig. Novis and Visnovsky 2011	validly published under the ICN (Botanical Code)	correct name
    Phormidium arthurensis Novis and Visnovsky 2011	inaccurate spelling (ICN [Botanical Code])	misspelling
    Phormidium articulatum (Gardner 1927) Anagnostidis and Komárek 1988	validly published under the ICN (Botanical Code)	correct name
    Phormidium arvense (Rao 1937) Anagnostidis 2001	validly published under the ICN (Botanical Code)	correct name
    Phormidium attenuatum (Fritsch 1912) Anagnostidis and Komárek 1988	validly published under the ICN (Botanical Code)	synonym
    Phormidium autumnale Gomont 1892	validly published under the ICN (Botanical Code)	synonym
    Phormidium baculum (Gomont 1892) Anagnostidis 2001	validly published under the ICN (Botanical Code)	synonym
    Phormidium balliaense Pandey and Mitra 1965	validly published under the ICN (Botanical Code)	correct name
    Phormidium beccarianum (Gomont 1886) Anagnostidis and Komárek 1988	validly published under the ICN (Botanical Code)	correct name
    Phormidium beggiatoiforme (Gomont 1892) Anagnostidis and Komárek 1988	validly published under the ICN (Botanical Code)	synonym
    Phormidium bekesiense (Kiss 1959) Kiss 2001	validly published under the ICN (Botanical Code)	correct name
    Phormidium beppuense corrig. Yoneda 1938	validly published under the ICN (Botanical Code)	correct name
    Phormidium beppuensis Yoneda 1938	inaccurate spelling (ICN [Botanical Code])	misspelling
    Phormidium bigranulatum Gardner 1926	validly published under the ICN (Botanical Code)	synonym
    Phormidium bijahense corrig. Copeland 1936	validly published under the ICN (Botanical Code)	synonym
    Phormidium bijahensis Copeland 1936	inaccurate spelling (ICN [Botanical Code])	misspelling
    Phormidium bijugatum Kongisser 1924	validly published under the ICN (Botanical Code)	synonym
    Phormidium bohneri Schmidle 1901	validly published under the ICN (Botanical Code)	correct name
    Phormidium boryanum (Bory ex Gomont 1892) Anagnostidis and Komárek 1988	validly published under the ICN (Botanical Code)	correct name
    Phormidium breve (Kützing ex Gomont 1892) Anagnostidis and Komárek 1988	validly published under the ICN (Botanical Code)	correct name
    Phormidium bulgaricum (Komárek 1956) Anagnostidis and Komárek 1988	validly published under the ICN (Botanical Code)	correct name
    Phormidium caerulescens (Gicklhorn 1921) Anagnostidis 2001	validly published under the ICN (Botanical Code)	correct name
    Phormidium calciphilum Umezaki 1995	validly published under the ICN (Botanical Code)	correct name
    Phormidium calidum Gomont 1892	validly published under the ICN (Botanical Code)	synonym
    Phormidium californicum Drouet 1942	validly published under the ICN (Botanical Code)	correct name
    Phormidium carboniciphilum (Prát 1929) Anagnostidis and Komárek 1988	validly published under the ICN (Botanical Code)	correct name
    Phormidium carotinosum (Geitler 1956) Anagnostidis and Komárek 1988	validly published under the ICN (Botanical Code)	synonym
    Phormidium caucasicum (Elenkin and Kossinskaja 1949) Anagnostidis 2001	validly published under the ICN (Botanical Code)	synonym
    Phormidium cebennense Gomont 1899	validly published under the ICN (Botanical Code)	synonym
    Phormidium chalybeum (Mertens ex Gomont 1892) Anagnostidis and Komárek 1988	validly published under the ICN (Botanical Code)	correct name
    Phormidium chlorinum (Kützing ex Gomont 1892) Umezaki and Watanabe 1994	validly published under the ICN (Botanical Code)	synonym
    Phormidium chungii Gardner 1927	validly published under the ICN (Botanical Code)	synonym
    Phormidium claricentrosum (Gardner 1927) Anagnostidis and Komárek 1988	validly published under the ICN (Botanical Code)	synonym
    Phormidium cliarense (West 1912) Anagnostidis and Komárek 1988	validly published under the ICN (Botanical Code)	correct name
    Phormidium conradii (Kufferath 1914) Anagnostidis and Komárek 1988	validly published under the ICN (Botanical Code)	correct name
    Phormidium corallinae (Gomont ex Gomont 1892) Anagnostidis and Komárek 1988	validly published under the ICN (Botanical Code)	correct name
    Phormidium corallyticum Rützler and Santavy 1983	validly published under the ICN (Botanical Code)	synonym
    Phormidium corbierei (Frémy 1923) Anagnostidis 2001	validly published under the ICN (Botanical Code)	correct name
    Phormidium corium Gomont ex Gomont 1892	validly published under the ICN (Botanical Code)	correct name
    Phormidium crassius (Behre 1956) Anagnostidis 2001	validly published under the ICN (Botanical Code)	correct name
    Phormidium crassivaginatum (Claus 1962) Anagnostidis and Komárek 1988	validly published under the ICN (Botanical Code)	correct name
    Phormidium crouani Gomont 1892	inaccurate spelling (ICN [Botanical Code])	misspelling
    Phormidium crouanii corrig. Gomont 1892	validly published under the ICN (Botanical Code)	correct name
    Phormidium crustaceum Woronichin 1932	validly published under the ICN (Botanical Code)	synonym
    Phormidium curtum Hollerbach 1935	validly published under the ICN (Botanical Code)	synonym
    Phormidium deflexoides (Elenkin and Kossinskaja 1949) Anagnostidis and Komárek 1988	validly published under the ICN (Botanical Code)	correct name
    Phormidium deflexum (West and West 1911) Anagnostidis and Komárek 1988	validly published under the ICN (Botanical Code)	synonym
    Phormidium dictyothallum Skuja 1948	validly published under the ICN (Botanical Code)	synonym
    Phormidium diguetii (Gomont 1895) Anagnostidis and Komárek 1988	validly published under the ICN (Botanical Code)	correct name
    Phormidium dudichianum corrig. (Claus 1955) Anagnostidis 2001	validly published under the ICN (Botanical Code)	correct name
    Phormidium dudicsianum (Claus 1955) Anagnostidis 2001	inaccurate spelling (ICN [Botanical Code])	misspelling
    Phormidium ectocarpi Gomont 1899	validly published under the ICN (Botanical Code)	synonym
    Phormidium edessae Skuja 1937	validly published under the ICN (Botanical Code)	correct name
    Phormidium endolithicum Ercegović 1932	validly published under the ICN (Botanical Code)	correct name
    Phormidium endospongeliae Umezaki 1995	validly published under the ICN (Botanical Code)	correct name
    Phormidium epiphyticum Gardner 1932	validly published under the ICN (Botanical Code)	correct name
    Phormidium ercegovicii Čado 1958	validly published under the ICN (Botanical Code)	synonym
    Phormidium etoshii Dadheech et al. 2013	validly published under the ICN (Botanical Code)	synonym
    Phormidium exospirum (Skuja 1956) Anagnostidis 2001	validly published under the ICN (Botanical Code)	correct name
    Phormidium favosum Gomont 1892	validly published under the ICN (Botanical Code)	synonym
    Phormidium fonticola Kützing ex Gomont 1892	validly published under the ICN (Botanical Code)	synonym
    Phormidium foreaui (Frémy 1942) Umezaki and Watanabe 1994	validly published under the ICN (Botanical Code)	correct name
    Phormidium formosum (Bory ex Gomont 1892) Anagnostidis and Komárek 1988	validly published under the ICN (Botanical Code)	synonym
    Phormidium foveolarum Gomont 1892	validly published under the ICN (Botanical Code)	synonym
    Phormidium fragile Gomont ex Gomont 1892	validly published under the ICN (Botanical Code)	synonym
    Phormidium frigidum Fritsch 1912	validly published under the ICN (Botanical Code)	synonym
    Phormidium gardnerianum Drouet 1942	validly published under the ICN (Botanical Code)	correct name
    Phormidium gebhardtianum (Claus 1962) Anagnostidis and Komárek 1988	validly published under the ICN (Botanical Code)	synonym
    Phormidium gelatinicola Geitler 1933	validly published under the ICN (Botanical Code)	synonym
    Phormidium gelatinosum Woronichin 1923	validly published under the ICN (Botanical Code)	synonym
    Phormidium geysericola Copeland 1936	validly published under the ICN (Botanical Code)	synonym
    Phormidium glaciale West and West 1911	validly published under the ICN (Botanical Code)	synonym
    Phormidium gracile (Rabenhorst ex Gomont 1892) Anagnostidis 2001	validly published under the ICN (Botanical Code), illegitimate name, later homonym	synonym
    Phormidium gracile Lindstedt 1943	validly published under the ICN (Botanical Code)	synonym
    Phormidium granulatum (Gardner 1927) Anagnostidis 2001	validly published under the ICN (Botanical Code)	correct name
    Phormidium griseoviolaceum (Skuja 1956) Anagnostidis 2001	validly published under the ICN (Botanical Code)	correct name
    Phormidium groesbeckianum Drouet 1942	validly published under the ICN (Botanical Code)	correct name
    Phormidium grunowianum (Gomont 1892) Anagnostidis and Komárek 1988	validly published under the ICN (Botanical Code)	correct name
    "Phormidium halophilum" (Hansgirg ex Gomont 1892) Anagnostidis and Komárek 1988	not validly published	synonym (and no standing)
    Phormidium hamelii (Frémy 1930) Anagnostidis and Komárek 1988	validly published under the ICN (Botanical Code)	correct name
    Phormidium hancockii (Drouet 1936) Drouet 1942	validly published under the ICN (Botanical Code)	correct name
    Phormidium hendersonii Howe 1918	validly published under the ICN (Botanical Code)	synonym
    Phormidium henningsii Lemmermann 1907	validly published under the ICN (Botanical Code)	synonym
    Phormidium heteropolare Skuja 1964	validly published under the ICN (Botanical Code)	correct name
    Phormidium hiemale (Jaag 1938) Anagnostidis 2001	validly published under the ICN (Botanical Code)	synonym
    Phormidium holdenii (Forti 1907) Branco et al. 1997	validly published under the ICN (Botanical Code)	synonym
    Phormidium hormoides Setchell and Gardner 1918	validly published under the ICN (Botanical Code)	synonym
    Phormidium hoshiarpurense Vasishta 1965	validly published under the ICN (Botanical Code)	correct name
    Phormidium hyalinum Bongale 1987	validly published under the ICN (Botanical Code)	correct name
    Phormidium hydrocoleoides Drouet 1942	validly published under the ICN (Botanical Code)	correct name
    Phormidium hypersalinum Campbell and Golubić 1985	validly published under the ICN (Botanical Code)	synonym
    Phormidium hypolimneticum Campbell 1985	validly published under the ICN (Botanical Code)	synonym
    Phormidium ibusukiense (Emoto and Yoneda 1940) Anagnostidis and Komárek 1988	validly published under the ICN (Botanical Code)	correct name
    Phormidium ingricum (Woronichin 1931) Anagnostidis and Komárek 1988	validly published under the ICN (Botanical Code), illegitimate name	synonym
    Phormidium insigne (Skuja 1956) Anagnostidis 2001	validly published under the ICN (Botanical Code)	correct name
    Phormidium insulare (Gardner 1927) Senna and Compère 1998	validly published under the ICN (Botanical Code)	correct name
    Phormidium inundatum Kützing ex Gomont 1892	validly published under the ICN (Botanical Code)	correct name
    Phormidium ionicum (Skuja 1937) Anagnostidis and Komárek 1988	validly published under the ICN (Botanical Code)	synonym
    Phormidium irriguum (Kützing ex Gomont 1892) Anagnostidis and Komárek 1988	validly published under the ICN (Botanical Code)	correct name
    Phormidium jasorvense corrig. (Vouk 1919) Anagnostidis and Komárek 1988	validly published under the ICN (Botanical Code)	synonym
    Phormidium jasorvensis (Vouk 1919) Anagnostidis and Komárek 1988	inaccurate spelling (ICN [Botanical Code])	misspelling
    Phormidium jenkelianum Schmid 1914	validly published under the ICN (Botanical Code)	synonym
    Phormidium karakalpakense (Muzafarov 1959) Anagnostidis and Komárek 1988	validly published under the ICN (Botanical Code)	correct name
    Phormidium koettlitzii (Fritsch 1912) Anagnostidis and Komárek 1988	validly published under the ICN (Botanical Code)	correct name
    Phormidium kolkwitzii Komárek 2001	validly published under the ICN (Botanical Code)	correct name
    Phormidium komarovii Anissimova 1949	validly published under the ICN (Botanical Code)	synonym
    Phormidium kondratjevae corrig. Vinogradova 2011	validly published under the ICN (Botanical Code)	correct name
    Phormidium kondratjevi Vinogradova 2011	inaccurate spelling (ICN [Botanical Code])	misspelling
    Phormidium konstantinosum Umezaki and Watanabe 1994	validly published under the ICN (Botanical Code)	correct name
    Phormidium koprophilum (Skuja 1948) Anagnostidis 2001	validly published under the ICN (Botanical Code)	correct name
    Phormidium koreanum An 1992	validly published under the ICN (Botanical Code)	synonym
    Phormidium kuetzingianum (Kirchner ex Hansgirg 1892) Anagnostidis and Komárek 1988	validly published under the ICN (Botanical Code)	correct name
    Phormidium kwangsiense Jao 1944	validly published under the ICN (Botanical Code)	synonym
    "Phormidium lacuna" Nies et al. 2017	not validly published	preferred name (not correct name)
    "Phormidium lacustre" (Čado 1958) Anagnostidis 2001	not validly published	preferred name (not correct name)
    Phormidium laetevirens (Crouan and Crouan ex Gomont 1892) Anagnostidis and Komárek 1988	validly published under the ICN (Botanical Code)	synonym
    "Phormidium laminosum" (Agardh 1827) Gomont 1890	not validly published	synonym (and no standing)
    Phormidium laminosum Gomont ex Gomont 1892	validly published under the ICN (Botanical Code)	synonym
    Phormidium lapideum Geitler 1933	validly published under the ICN (Botanical Code)	synonym
    Phormidium laysanense Lemmermann 1905	validly published under the ICN (Botanical Code)	correct name
    Phormidium lignicola Frémy 1930	validly published under the ICN (Botanical Code)	synonym
    Phormidium limosum (Dillwyn 1802) Silva 1996	validly published under the ICN (Botanical Code)	correct name
    Phormidium lismorense (Playfair 1914) Anagnostidis and Komárek 1988	validly published under the ICN (Botanical Code)	correct name
    Phormidium lloydianum (Gomont 1899) Anagnostidis and Komárek 1988	validly published under the ICN (Botanical Code)	synonym
    Phormidium lucidum Kützing ex Gomont 1892	validly published under the ICN (Botanical Code)	correct name
    Phormidium lumbricale Johansen and Casamatta 2005	validly published under the ICN (Botanical Code)	synonym
    Phormidium luridum Gomont 1892	validly published under the ICN (Botanical Code)	synonym
    Phormidium lusitanicum (Sampaio 1941) Anagnostidis 2001	validly published under the ICN (Botanical Code)	correct name
    Phormidium lutescens (Hansgirg 1892) Anagnostidis and Komárek 1988	validly published under the ICN (Botanical Code)	correct name
    Phormidium maraaense (Setchell 1926) Anagnostidis and Komárek 1988	validly published under the ICN (Botanical Code)	correct name
    Phormidium martinii (Frémy 1930) Anagnostidis and Komárek 1988	validly published under the ICN (Botanical Code)	correct name
    Phormidium mehrai Vasishta 1962	inaccurate spelling (ICN [Botanical Code])	misspelling
    Phormidium meslinii (Frémy 1930) Anagnostidis and Komárek 1988	validly published under the ICN (Botanical Code)	correct name
    Phormidium microtomum Skuja 1949	validly published under the ICN (Botanical Code)	synonym
    Phormidium minnesotense (Tilden 1902) Drouet 1942	validly published under the ICN (Botanical Code)	correct name
    Phormidium molischii (Vouk 1919) Anagnostidis and Komárek 1988	validly published under the ICN (Botanical Code)	correct name
    Phormidium molle Gomont 1892	validly published under the ICN (Botanical Code)	synonym
    Phormidium monile Setchell and Gardner 1930	validly published under the ICN (Botanical Code)	correct name
    Phormidium mucicola Naumann and Huber-Pestalozzi 1929	validly published under the ICN (Botanical Code)	correct name
    Phormidium mucosum Gardner 1927	validly published under the ICN (Botanical Code)	synonym
    Phormidium murrayi (West and West 1911) Anagnostidis and Komárek 1988	validly published under the ICN (Botanical Code)	synonym
    Phormidium muscorum (Gomont ex Gomont 1892) Dalla Torre and Sarnthein 1901	validly published under the ICN (Botanical Code)	synonym
    Phormidium mycoideum Frémy 1935	validly published under the ICN (Botanical Code)	synonym
    Phormidium natans (Gomont 1892) Senna and Compère 1998	validly published under the ICN (Botanical Code)	synonym
    Phormidium nemuroense (Yoneda 1941) Umezaki and Watanabe 1994	validly published under the ICN (Botanical Code)	correct name
    Phormidium nigroviride (Thwaites ex Gomont 1892) Anagnostidis and Komárek 1988	validly published under the ICN (Botanical Code)	correct name
    "Phormidium nigrum" (Vaucher ex Gomont 1892) Anagnostidis and Komárek 1988	not validly published	preferred name (not correct name)
    Phormidium nostochoides Jao 1948	validly published under the ICN (Botanical Code)	synonym
    Phormidium numidicum (Gomont 1892) Anagnostidis and Komárek 1988	validly published under the ICN (Botanical Code)	synonym
    Phormidium okenii (Agardh ex Gomont 1892) Anagnostidis and Komárek 1988	validly published under the ICN (Botanical Code)	synonym
    Phormidium ornatum (Kützing ex Gomont 1892) Anagnostidis and Komárek 1988	validly published under the ICN (Botanical Code)	correct name
    Phormidium pachydermaticum Frémy 1930	validly published under the ICN (Botanical Code)	correct name
    Phormidium papyraceum Gomont ex Gomont 1892	validly published under the ICN (Botanical Code)	correct name
    Phormidium paucigranatum (Brühl and Biswas 1922) Anagnostidis and Komárek 1988	validly published under the ICN (Botanical Code)	correct name
    Phormidium pavlovskoense Elenkin 1949	validly published under the ICN (Botanical Code)	synonym
    Phormidium penicillatum Gomont 1893	validly published under the ICN (Botanical Code)	synonym
    Phormidium persicinum Gomont 1892	validly published under the ICN (Botanical Code)	synonym
    Phormidium priestleyi Fritsch 1917	validly published under the ICN (Botanical Code)	synonym
    Phormidium productum (West and West 1911) Anagnostidis and Komárek 1988	validly published under the ICN (Botanical Code)	correct name
    Phormidium proteus (Skuja 1949) Umezaki and Watanabe 1994	validly published under the ICN (Botanical Code)	synonym
    Phormidium pseudacutissimum (Geitler 1956) Anagnostidis and Komárek 1988	validly published under the ICN (Botanical Code)	synonym
    Phormidium pseudocortianum (Starmach 1973) Anagnostidis 2001	validly published under the ICN (Botanical Code)	correct name
    Phormidium pseudookenii Turicchia et al. 2009	validly published under the ICN (Botanical Code)	correct name
    Phormidium pseudopriestleyi Anagnostidis and Komárek 1988	validly published under the ICN (Botanical Code)	correct name
    Phormidium pseudotenue Stockmayer and Skuja 1937	validly published under the ICN (Botanical Code)	synonym
    Phormidium pseudovalderianum Woronichin 1930	validly published under the ICN (Botanical Code)	synonym
    Phormidium pulvinatum Woronichin 1923	validly published under the ICN (Botanical Code)	correct name
    Phormidium purpurascens Gomont 1890	validly published under the ICN (Botanical Code)	synonym
    Phormidium puteale (Montagne 1840) Anagnostidis and Komárek 1988	validly published under the ICN (Botanical Code)	correct name
    Phormidium quadripunctulata (Brühl and Biswas 1922) Gardner 1926	inaccurate spelling (ICN [Botanical Code])	misspelling
    Phormidium quadripunctulatum corrig. (Brühl and Biswas 1922) Gardner 1926	validly published under the ICN (Botanical Code)	synonym
    Phormidium ramosum Petersen 1923	validly published under the ICN (Botanical Code)	synonym
    Phormidium raoi Senna and Compère 1998	validly published under the ICN (Botanical Code)	correct name
    Phormidium regelii (Skuja 1937) Anagnostidis and Komárek 1988	validly published under the ICN (Botanical Code)	correct name
    Phormidium retzii Gomont 1892	validly published under the ICN (Botanical Code)	correct name
    Phormidium richardsii Drouet 1942	validly published under the ICN (Botanical Code)	correct name
    Phormidium rimosum (Komárek 1956) Anagnostidis and Komárek 1988	validly published under the ICN (Botanical Code)	correct name
    Phormidium roseum (Batters 1896) Anagnostidis 2001	validly published under the ICN (Botanical Code)	correct name
    Phormidium rotunda Santra and Pal 1992	inaccurate spelling (ICN [Botanical Code])	misspelling
    Phormidium rotundum corrig. Santra and Pal 1992	validly published under the ICN (Botanical Code)	correct name
    Phormidium rubidum (Frémy 1930) Anagnostidis and Komárek 1988	validly published under the ICN (Botanical Code)	correct name
    Phormidium rubriterricola Gardner 1927	validly published under the ICN (Botanical Code)	synonym
    Phormidium rupicola corrig. (Hansgirg ex Gomont 1892) Anagnostidis and Komárek 1988	validly published under the ICN (Botanical Code)	correct name
    Phormidium rupicolum (Hansgirg ex Gomont 1892) Anagnostidis and Komárek 1988	inaccurate spelling (ICN [Botanical Code])	misspelling
    Phormidium sakashitae (Yoneda 1938) Anagnostidis and Komárek 1988	inaccurate spelling (ICN [Botanical Code])	misspelling
    Phormidium sakasitae corrig. (Yoneda 1938) Anagnostidis and Komárek 1988	validly published under the ICN (Botanical Code)	correct name
    Phormidium salinarum (Collins 1906) Anagnostidis and Komárek 1988	validly published under the ICN (Botanical Code)	correct name
    Phormidium salinum (Alten 1913) Anagnostidis and Komárek 1988	validly published under the ICN (Botanical Code)	correct name
    Phormidium schroederi (Borge 1928) Anagnostidis and Komárek 1988	validly published under the ICN (Botanical Code)	correct name
    Phormidium schroeteri (Hansgirg ex Hansgirg 1892) Anagnostidis 2001	validly published under the ICN (Botanical Code)	correct name
    Phormidium schultzii (Lemmermann 1905) Anagnostidis and Komárek 1988	validly published under the ICN (Botanical Code)	correct name
    Phormidium scytonematicola Gardner 1927	validly published under the ICN (Botanical Code)	synonym
    Phormidium setchellianum Gomont 1892	validly published under the ICN (Botanical Code)	synonym
    Phormidium simplicissimum (Gomont 1892) Anagnostidis and Komárek 1988	validly published under the ICN (Botanical Code)	correct name
    "Phormidium solitare" (Kützing ex Gomont 1892) Anagnostidis and Komárek 1988	not validly published	preferred name (not correct name)
    Phormidium solitare Forti 1907	validly published under the ICN (Botanical Code)	correct name
    Phormidium spirale Jao 1948	validly published under the ICN (Botanical Code)	synonym
    Phormidium spirulinoides (Yoneda 1954) Umezaki and Watanabe 1994	validly published under the ICN (Botanical Code)	correct name
    Phormidium splendidum (Greville ex Gomont 1892) Anagnostidis and Komárek 1988	validly published under the ICN (Botanical Code)	synonym
    Phormidium spongeliae Gomont 1892	validly published under the ICN (Botanical Code)	synonym
    Phormidium spongicola Weber-van Bosse 1926	validly published under the ICN (Botanical Code)	correct name
    Phormidium stagninum Anagnostidis 2001	validly published under the ICN (Botanical Code), illegitimate name	in need of a replacement
    Phormidium standleyi Drouet 1942	validly published under the ICN (Botanical Code)	correct name
    Phormidium steyermarkii Drouet 1942	validly published under the ICN (Botanical Code)	correct name
    Phormidium subcapitatum Petersen 1923	validly published under the ICN (Botanical Code)	synonym
    Phormidium subhormoides An 1992	validly published under the ICN (Botanical Code)	synonym
    Phormidium subincrustatum Fritsch and Rich 1929	validly published under the ICN (Botanical Code)	synonym
    Phormidium submembranaceum (Ardissone and Strafforello 1877) Gomont 1892	validly published under the ICN (Botanical Code)	correct name
    Phormidium subproboscideum (West and West 1911) Anagnostidis and Komárek 1988	validly published under the ICN (Botanical Code)	correct name
    Phormidium subsalsum Gomont 1899	validly published under the ICN (Botanical Code)	synonym
    Phormidium subspiroides (Copeland 1936) Umezaki and Watanabe 1994	validly published under the ICN (Botanical Code)	correct name
    Phormidium subterraneum Copeland 1936	validly published under the ICN (Botanical Code)	synonym
    Phormidium subtruncatum Woronichin 1930	validly published under the ICN (Botanical Code)	synonym
    Phormidium subuliforme Gomont 1892	validly published under the ICN (Botanical Code)	synonym
    Phormidium subuliforme (Thwaites ex Gomont 1892) Anagnostidis and Komárek 1988	validly published under the ICN (Botanical Code), illegitimate name, later homonym	synonym
    Phormidium tadzhikicum Melnikova 1953	validly published under the ICN (Botanical Code)	correct name
    Phormidium takyricum (Novichkova 1960) Vinogradova 2011	validly published under the ICN (Botanical Code)	correct name
    Phormidium tambi corrig. (Woronichin 1926) Anagnostidis and Komárek 1988	validly published under the ICN (Botanical Code)	correct name
    Phormidium tambii (Woronichin 1926) Anagnostidis and Komárek 1988	inaccurate spelling (ICN [Botanical Code])	misspelling
    Phormidium tanganyikae (West 1907) Anagnostidis and Komárek 1988	validly published under the ICN (Botanical Code)	correct name
    Phormidium taylori (Drouet and Strickland 1940) Anagnostidis 2001	inaccurate spelling (ICN [Botanical Code])	misspelling
    Phormidium taylorii corrig. (Drouet and Strickland 1940) Anagnostidis 2001	validly published under the ICN (Botanical Code)	correct name
    Phormidium tenue Gomont 1892	validly published under the ICN (Botanical Code)	synonym
    Phormidium tenue (Agardh ex Gomont 1892) Anagnostidis and Komárek 1988	validly published under the ICN (Botanical Code), illegitimate name, later homonym	synonym
    Phormidium tenuissimum Woronichin 1930	validly published under the ICN (Botanical Code)	correct name
    Phormidium terebriforme (Agardh ex Gomont 1892) Anagnostidis and Komárek 1988	validly published under the ICN (Botanical Code)	correct name
    Phormidium tergestinum (Rabenhorst ex Gomont 1892) Anagnostidis and Komárek 1988	validly published under the ICN (Botanical Code)	correct name
    Phormidium thermale Vouk 1916	validly published under the ICN (Botanical Code)	correct name
    Phormidium thermale Drouet 1942	validly published under the ICN (Botanical Code), illegitimate name, later homonym	synonym
    Phormidium thermobium Anagnostidis 2001	validly published under the ICN (Botanical Code)	correct name
    Phormidium thwaitesii Umezaki and Watanabe 1994	validly published under the ICN (Botanical Code)	correct name
    Phormidium tinctorium Kützing ex Gomont 1892	validly published under the ICN (Botanical Code)	correct name
    Phormidium tortuosum (Gardner 1927) Anagnostidis and Komárek 1988	validly published under the ICN (Botanical Code)	correct name
    Phormidium treleasei Gomont 1899	validly published under the ICN (Botanical Code)	synonym
    Phormidium truncatum Lemmermann 1908	validly published under the ICN (Botanical Code)	synonym
    Phormidium truncicola Ghose 1924	validly published under the ICN (Botanical Code)	correct name
    Phormidium ulrichii (Prát 1929) Anagnostidis and Komárek 1988	validly published under the ICN (Botanical Code)	correct name
    "Phormidium uncinatum" Gomont 1890	not validly published	synonym (and no standing)
    Phormidium uncinatum Gomont ex Gomont 1892	validly published under the ICN (Botanical Code)	correct name
    Phormidium undosum Cado 1958	validly published under the ICN (Botanical Code)	correct name
    Phormidium unigranulatum (Kiselev 1931) Anagnostidis and Komárek 1988	validly published under the ICN (Botanical Code)	correct name
    Phormidium valderianum Gomont 1892	validly published under the ICN (Botanical Code)	synonym
    Phormidium valderium Gomont 1892	validly published under the ICN (Botanical Code)	correct name
    Phormidium variabile corrig. Azevedo and Sant'Anna 1993	validly published under the ICN (Botanical Code), illegitimate name, later homonym	in need of a replacement
    Phormidium variabile (Wille 1922) Anagnostidis and Komárek 1988	validly published under the ICN (Botanical Code)	correct name
    Phormidium variabilis Azevedo and Sant'Anna 1993	inaccurate spelling (ICN [Botanical Code])	misspelling
    "Phormidium versicolor" Wartmann 1865	not validly published	preferred name (not correct name)
    Phormidium vesiculosum Copeland 1936	validly published under the ICN (Botanical Code)	synonym
    Phormidium violaceum (Wallroth ex Gomont 1892) Anagnostidis and Komárek 1988	validly published under the ICN (Botanical Code)	correct name
    Phormidium weedii (Tilden 1898) Copeland 1936	validly published under the ICN (Botanical Code)	synonym
    Phormidium westii Kufferath 1929	validly published under the ICN (Botanical Code)	synonym
    Phormidium willei (Gardner 1927) Anagnostidis and Komárek 1988	validly published under the ICN (Botanical Code)	correct name
    Phormidium woronichinii Anissimova 1949	validly published under the ICN (Botanical Code), illegitimate name	in need of a replacement
    Phormidium woronichinii (Ponomarev 1929) Anagnostidis 2001	validly published under the ICN (Botanical Code), illegitimate name, later homonym	synonym
    Phormidium yonedae (Umezaki 1961) Umezaki and Watanabe 1994	validly published under the ICN (Botanical Code)	correct name
    Phormidium yuhuense (Yoneda 1938) Anagnostidis and Komárek 1988	validly published under the ICN (Botanical Code)	correct name
    "Phormidium yuhuli" Koch et al. 2022	not validly published	preferred name (not correct name)
    Phormidium yuichii Umezaki and Watanabe 1994	validly published under the ICN (Botanical Code)	correct name

Parent taxon: Oscillatoriaceae Engler 1898

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: 6341