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Genus Petalonema
Name: Petalonema Berkeley ex Correns 1889
Etymology: Pe.ta.lo.ne’ma. Gr. neut. n. nêma, a thread; N.L. neut. n. Petalonema, a broad thread
Gender, pronunciation (Latin): neuter (stem: Petalonemat-), pe-ta-lo-NE-ma
Type species: Petalonema alatum (Borzì ex Bornet and Flahault 1886) Correns 1889
Valid publication: Correns C. Über Dickenwachsthum durch Intussusception bei einigen Algenmembranen. Flora (Jena) 1889; 72:298-347.
Nomenclatural status: validly published under the ICN (Botanical Code)
Taxonomic status: correct name
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Notes:
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🧕 Hoffmann et al. (2005) assigned this genus to the family Microchaetaceae Lemmermann 1907.
Publication:
Hoffmann L, Komárek J, Kaštovský J. System of cyanoprokaryotes (cyanobacteria) – state in 2004. Algol. Stud. 2005; 117:95-115.
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- 🚋 The type species of this genus has alternatively been placed in the genus Scytonema Agardh ex Bornet and Flahault 1886. 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.
- 🙄 This taxon name is occasionally misprinted (or affected by an OCR error) in some sources as: "Pctalonema"; "Peialonema"; "Pejlonema"; "Pelalonema"; "Penslonema"; "Peralonema"; "Perulonema"; "Petalanema"; "Petalenema"; "Petalomena"; "Petaloncma"; "Petalonem"; "Petalonenia"; "Petalouema"; "Petelonema".
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🧕 Hoffmann et al. (2005) assigned this genus to the family Microchaetaceae Lemmermann 1907.
Publication:
Hoffmann L, Komárek J, Kaštovský J. System of cyanoprokaryotes (cyanobacteria) – state in 2004. Algol. Stud. 2005; 117:95-115.
Number of child taxa with a validly published and correct name: 10
Number of child taxa with a validly published name, including synonyms: 10
Total number of child taxa: 11
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Child taxa:
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Name Nomenclatural status Taxonomic status Petalonema alatum (Borzì ex Bornet and Flahault 1886) Correns 1889 validly published under the ICN (Botanical Code) correct name Petalonema crassum (Nägeli ex Kützing 1849) Migula 1905 validly published under the ICN (Botanical Code) correct name Petalonema crustaceum (Agardh 1824) Kirchner 1900 validly published under the ICN (Botanical Code) correct name Petalonema densum (Braun ex Kützing 1849) Migula 1905 validly published under the ICN (Botanical Code) correct name Petalonema fluminale corrig. Zhao 1991 validly published under the ICN (Botanical Code) correct name Petalonema fluminalis Zhao 1991 inaccurate spelling (ICN [Botanical Code]) misspelling Petalonema incrustans (Kützing 1843) Komárek 2012 validly published under the ICN (Botanical Code) correct name Petalonema involvens (Braun 1856) Migula 1905 validly published under the ICN (Botanical Code) correct name Petalonema pulchrum (Frémy 1924) Geitler 1932 validly published under the ICN (Botanical Code) correct name Petalonema simmeri (Schmidle 1899) Migula 1905 validly published under the ICN (Botanical Code) correct name Petalonema velutinum (Kützing 1843) Migula 1905 validly published under the ICN (Botanical Code) correct name
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Parent taxon: Scytonemataceae corrig. Frank 1886
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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Linking: To permanently link to this page, use https://lpsn.dsmz.de/genus/petalonemaLink copied to clipboard
Record number: 6423
This LPSN page was printed on 2026-03-15 08:04:38