Name: Chroococcopsis Geitler 1925

Category: Genus

Proposed as: gen. nov.

Etymology: Chro.o.cocc.op’sis. Gr. fem. n. opsis, appearance; N.L. fem. n. Chroococcopsis

Gender, pronunciation (Latin): feminine (stem: Chroococcopsid-), k^hro-o-kokk-OP-sis

Type species: Chroococcopsis gigantea Geitler 1925

Valid publication: Geitler L. Über neue oder wenig bekannte interessante Cyanophyceen aus der Gruppe der Chamaesiphonaceae. Archiv für Protistenkunde 1925; 51:321-360.

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

Taxonomic status: correct name

• Notes:
  • 🧕 Geitler (1925) assigned this genus to the family Pleurocapsaceae Geitler 1925. Publication: Geitler L. Synoptische Darstellung der Cyanophyceen in morphologischer und systematischer Hinsicht. Beihefte zum Botanischen Centralblatt 1925; 41:163-294.
  • 🧕 Hoffmann et al. (2005) assigned this genus to the family Xenococcaceae Ercegović 1932. Publication: Hoffmann L, Komárek J, Kastovsky J. System of cyanoprokaryotes (cyanobacteria) - state in 2004. Algological Studies 2005; 117:95-115. 🇱🇺
  • 🧕 Komarek et al. (1975) assigned this genus to the subfamily Chroococcidioideae Komárek et al. 1975. Publication: Komárek J, Ludvik J, Pokorny V. Cell structure and endospore formation in the blue-green alga Chroococcidiopsis. Arch. Hydrobiol. Suppl. 1975; 46:205-223.
  • 🧕 Strunecky et al. (2023) assigned this genus to the family Pleurocapsaceae Geitler 1925. Publication: 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. 🇨🇿
  • 🙄 This taxon name is occasionally misprinted (or affected by an OCR error) in some sources as: "Cbroococcopsis"; "Chroccoccopsis"; "Chroecoccopsis"; "Chroococeopsis"; "Chrooeoccopsis"; "Chrooroccopsis"; "Jhroococcopsis".
  • 🧍 Komarek et al. (2014) treated Hyellaceae as synonym of the younger Pleurocapsaceae but assigned this genus to Hyellaceae in the hierarchical classification. Publication: Komárek J, Kastovsky J, Mares J, Johansen JR. Taxonomic classification of cyanoprokaryotes (cyanobacterial genera) 2014, using a polyphasic approach. Preslia 2014; 86:295-335. 🇨🇿

Subdivision:

Number of child taxa with a validly published and correct name: 7
Number of child taxa with a validly published name, including synonyms: 7
Total number of child taxa: 9

• Child taxa:

  • Name	Nomenclatural status	Taxonomic status
    Chroococcopsis amethystea (Rosenvinge 1893) Geitler 1925	validly published under the ICN (Botanical Code)	correct name
    Chroococcopsis caldaria (Tilden 1898) Geitler 1925	validly published under the ICN (Botanical Code)	correct name
    Chroococcopsis chroococcoides (Fritsch 1929) Komárek and Anagnostidis 1995	validly published under the ICN (Botanical Code)	correct name
    Chroococcopsis epiphytica Geitler 1980	validly published under the ICN (Botanical Code)	correct name
    Chroococcopsis fluminensis Fritsch 1929	validly published under the ICN (Botanical Code)	correct name
    Chroococcopsis fluviatilis (Lagerheim 1888) Komárek and Anagnostidis 1995	validly published under the ICN (Botanical Code)	correct name
    "Chroococcopsis gelatinosa" corrig. (Geitler 1933) Bourrelly 1970	not validly published	synonym
    "Chroococcopsis gelatinosum" (Geitler 1933) Bourrelly 1970	inaccurate spelling	misspelling
    Chroococcopsis gigantea Geitler 1925	validly published under the ICN (Botanical Code)	correct name

Parent taxon: Hydrococcaceae Kützing 1843

Assigned by: Freese HM, Meier-Kolthoff JP, Sarda Carbasse J, Afolayan AO, Goker M. TYGS and LPSN in 2025: a Global Core Biodata Resource for genome-based classification and nomenclature of prokaryotes within DSMZ Digital Diversity. Nucleic Acids Res 2026; 54:D884-D891. 🇩🇪

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Record number: 6434