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Umbilicus Candolle (1801: 1). Type:— non designatus fide Farr & Zijlstra (1996 +). Heterotypic synonyms:— Umbilicus sect. Chiastophyllum Ledebour (1843: 176); Chiastophyllum (Ledeb.) Stapf (1930: 176, 316–317). Type:— Cotyledon oppositifolia Ledeb. ex Nordmann (1837: 313) (Turland et al. 2018: Art. 40.3). Name in Chiastophyllum: Chiastophyllum oppositifolium (Ledeb. ex Nordm.) Stapf (1930: 316–317); name in Umbilicus: Umbilicus oppositifolius (Ledeb. ex Nordm.) Ledebour (1843: 176)., Published as part of Smith, Gideon F. & Monro, Anna M., 2022, Notes on the nomenclature and taxonomy of Chiastophyllum and Umbilicus oppositifolius (≡ Cotyledon oppositifolia, ≡ Chiastophyllum oppositifolium) (Crassulaceae subfam. Sempervivoideae), pp. 239-247 in Phytotaxa 564 (2) on page 244, DOI: 10.11646/phytotaxa.564.2.7, http://zenodo.org/record/7087286, {"references":["Candolle, A. P. de. (1801) Histoire naturelle. Botanique. Extrait d'un memoire sur la famille des Joubarbes. Bulletin des Sciences, par la Societe Philomathique (de Paris) 3 (49): 1 - 2. [https: // www. biodiversitylibrary. org / page / 5495103 page / 9 / mode / 1 up]","Farr, E. R. & Zijlstra, G. (eds.) (1996 +) Index nominum genericorum (plantarum). Available from: http: // botany. si. edu / ing / (Accessed 30 April 2022).","Ledebour, C. F. von. (1843) Flora rossica sive enumeratio plantarum in totius imperii rossici provinciis europaeis, asiaticis, et americanis hucusque observatarum. Voluminis II. Pars I. [Umbilicus sect. Chiastophyllum on p. 176]. Sumtibus Librariae E. Schweizerbart, Stuttgartiae [Stuttgart], 937 pp. [https: // www. biodiversitylibrary. org / page / 6104596 page / 202 / mode / 1 up]","Stapf, O. (1930) Index Londinensis to illustrations of flowering plants, ferns and fern allies […]. Vol. II. [Chiastophyllum on pp. 176, 316, and 317.] Clarendon Press, Oxford. 548 pp.","Nordmann, A. [D.] von. (1837 [lu le [read] 30 juin 1837]) NOTES. 23. Vorlaufige Diagnosen einiger wahrend einer naturwissenschaftlichen Reise im westlichen Theile der Kaukasischen Provinzen entdecken und als neu erkannten Pflanzenspecies. Bulletin Scientifique Publie par l'Academie Imperiale des Sciences de Saint-Petersbourg [St. Petersburg & Leipzig] II (20): 311 - 314. [https: // www. biodiversitylibrary. org / item / 43693 page / 390 / mode / 1 up]","Turland, N. J., Wiersema, J. H., Barrie, F. R., Greuter, W., Hawksworth, D. L., Herendeen, P. S., Knapp, S., Kusber, W. - H., Li, D. - Z., Marhold, K., May, T. W., McNeill, J., Monro, A. M., Prado, J., Price, M. J. & Smith, G. F. (eds.) (2018) International Code of Nomenclature for algae, fungi, and plants (Shenzhen Code) adopted by the Nineteenth International Botanical Congress Shenzhen, China, July 2017. Koeltz Botanical Books, Glashutten. [Regnum Vegetabile 159], 254 pp. https: // doi. org / 10.12705 / Code. 2018"]}

Umbilicus oppositifolius (Ledeb. ex Nordm.) Ledebour (1843: 176). Homotypic synonyms:— Cotyledon oppositifolia Ledeb. ex Nordmann (1837: 313). Chiastophyllum oppositifolium (Ledeb. ex Nordm.) Stapf (1930: 316–317). Type:— ““ Caucasus ” (Nordmann 329 [LE])” fide Walker (2003: 366, as “ T ”, i.e., “(nomenclatural) type ”, see Eggli 2003: X). Taxonomic placement of Chiastophyllum and Umbilicus oppositifolius :—At present Chiastophyllum is usually treated as a section in Umbilicus, as U. sect. Chiastophyllum, with the genus included in the Telephium clade of Crassulaceae subfam. Sempervivoideae (Eggli et al. 1995: 179, 191, Walker 2003: 364, Thiede & Eggli 2007: 97, Messerschmid et al. 2020: 893). Umbilicus sect. Chiastophyllum is monotypic, with U. oppositifolius the only included species. Umbilicus oppositifolius has fibrous roots, while the roots of all other species of Umbilicus are tuberous or rhizomatous. The leaves of U. oppositifolius are not peltate and are more or less ovate, whereas all its congeners have more or less peltate leaves with the leaf blades varying little from an orbicular outline (Fig. 2) (Smith & Figueiredo 2011). The flowers of U. oppositifolius range from light to bright yellow and are carried in branched, arched inflorescences (Fig. 1). Selected forms of the species are available in the horticultural trade., Published as part of Smith, Gideon F. & Monro, Anna M., 2022, Notes on the nomenclature and taxonomy of Chiastophyllum and Umbilicus oppositifolius (≡ Cotyledon oppositifolia, ≡ Chiastophyllum oppositifolium) (Crassulaceae subfam. Sempervivoideae), pp. 239-247 in Phytotaxa 564 (2) on page 244, DOI: 10.11646/phytotaxa.564.2.7, http://zenodo.org/record/7087286, {"references":["Ledebour, C. F. von. (1843) Flora rossica sive enumeratio plantarum in totius imperii rossici provinciis europaeis, asiaticis, et americanis hucusque observatarum. Voluminis II. Pars I. [Umbilicus sect. Chiastophyllum on p. 176]. Sumtibus Librariae E. Schweizerbart, Stuttgartiae [Stuttgart], 937 pp. [https: // www. biodiversitylibrary. org / page / 6104596 page / 202 / mode / 1 up]","Nordmann, A. [D.] von. (1837 [lu le [read] 30 juin 1837]) NOTES. 23. Vorlaufige Diagnosen einiger wahrend einer naturwissenschaftlichen Reise im westlichen Theile der Kaukasischen Provinzen entdecken und als neu erkannten Pflanzenspecies. Bulletin Scientifique Publie par l'Academie Imperiale des Sciences de Saint-Petersbourg [St. Petersburg & Leipzig] II (20): 311 - 314. [https: // www. biodiversitylibrary. org / item / 43693 page / 390 / mode / 1 up]","Stapf, O. (1930) Index Londinensis to illustrations of flowering plants, ferns and fern allies […]. Vol. II. [Chiastophyllum on pp. 176, 316, and 317.] Clarendon Press, Oxford. 548 pp.","Walker, C. C. (2003) Umbilicus. In: Eggli, U. (ed.) Illustrated handbook of succulent plants: Crassulaceae. Springer Verlag, Berlin, pp. 364 - 367; whole work 458 pp. and XLVIII plates.","Eggli, U. (2003) List of abbreviations and symbols. In: Eggli, U. (ed.) Illustrated handbook of succulent plants: Crassulaceae. Springer Verlag, Berlin, pp. IX - X; whole work 458 pp. and XLVIII plates.","Eggli, U., ' t Hart, H. & Nyffeler, R. (1995) Chapter 11. Toward a consensus classification of the Crassulaceae. In: ' t Hart, H. & Eggli, U. (eds.) Evolution and systematics of the Crassulaceae. Backhuys Publishers, Leiden, pp. 171 - 192; whole work 192 pp.","Thiede, J. & Eggli, U. (2007) Crassulaceae. In: Kubitzki, K. (ed.) The families and genera of vascular plants. IX. Flowering Plants. Eudicots. Springer-Verlag, Berlin, pp. 83 - 118.","Messerschmid, T. F. E., Klein, J. T., Kadereit, G. & Kadereit, J. W. (2020) Linnaeus's folly - phylogeny, evolution and classification of Sedum (Crassulaceae) and Crassulaceae subfamily Sempervivoideae. Taxon 69 (5): 892 - 926. https: // doi. org / 10.1002 / tax. 12316","Smith, G. F. & Figueiredo, E. (2011) Umbilicus rupestris: an interesting member of the Crassulaceae in Portugal. Cactus & Succulent Journal (U. S.) 83: 232 - 235."]}

XIX International Botanical Congress, Shenzhen: report of the Nomenclature Section, 17 th to 21 st July 2017

This is the official Report on the deliberations and decisions of the ten sessions of the Nomenclature Section of the XVIII International Botanical Congress held in Melbourne, Australia, in July 2011. The Section took place on five consecutive days prior to the Congress proper. The Section meetings were hosted by the School of Botany at the University of Melbourne, Australia. Technical facilities included full electronic recording of all discussion spoken into the microphones as well as a series of screen shots capturing what was displayed via computers on the overhead screens. Text of all proposals to amend the Code was displayed on one screen, while the relevant text of the Code itself was displayed on another screen allowing suggested amendments to be updated as appropriate. There was a strong female presence in leadership positions, despite the ratio of registered members still being skewed toward the male side (approx 33% of the registered members were women). The Section had the honour of being welcomed by the President of the Congress, Judy West, who was also a registered member of the Section and actively contributed to debate on the Acacia issue. The Secretary-General of the Congress, Karen Wilson, was very active during the entire Nomenclature Section, PhytoKeys 41: 1–289 (2014)