Genus Xenotholos

Name: Xenotholos Gold-Morgan et al. 1994

Category, proposed as: genus, gen. nov.

Etymology: Xe.no’tho.los. Gr. masc. n. xenos, foreign (ξενοζ); Gr. masc./fem. n. tholos, mud, dirt or dome, cupola (ϑολοζ); N.L. masc. n. Xenotholos, given meaning would be fem. but used as masc

Gender, pronunciation (Latin): masculine (stem: Xenothol-), xe-NO-t^ho-los

Type species: Xenotholos huastecanus Gold-Morgan et al. 1994

Valid publication: Gold-Morgan M, Montejano G, Komárek J. Freshwater epiphytic cyanoprokaryotes from central Mexico 2. Heterogeneity of the genus Xenococcus. Archiv für Protistenkunde 1994; 144:383-405.

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

Taxonomic status: correct name

• Notes:
  • 🧕 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. (2014) assigned this genus to the family Xenococcaceae Ercegović 1932. Publication: Komárek J, Kaštovský J, Mareš J, Johansen JR. Taxonomic classification of cyanoprokaryotes (cyanobacterial genera) 2014, using a polyphasic approach. Preslia 2014; 86:295-335. 🇨🇿
  • 🧕 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. 🇨🇿
  • 🎰 The BRCs most frequently used for deposits in this group are: FCME: 3.

Subdivision:

Number of child taxa with a validly published and correct name: 5
Number of child taxa with a validly published name, including synonyms: 5
Total number of child taxa: 5

• Child taxa:

  • Name	Nomenclatural status	Taxonomic status
    Xenotholos amplus Gold-Morgan et al. 1994	validly published under the ICN (Botanical Code)	correct name
    Xenotholos caeruleus Gold-Morgan et al. 1994	validly published under the ICN (Botanical Code)	correct name
    Xenotholos huastecanus Gold-Morgan et al. 1994	validly published under the ICN (Botanical Code)	correct name
    Xenotholos kerneri (Hansgirg 1887) Gold-Morgan et al. 1994	validly published under the ICN (Botanical Code)	correct name
    Xenotholos starmachii (Geitler 1932) Gold-Morgan et al. 1994	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: 6435