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dc.contributor.author
Romero, María Florencia
dc.contributor.author
González, Ana María
dc.contributor.author
Salas, Roberto Manuel
dc.date.available
2024-04-05T12:15:18Z
dc.date.issued
2023-03
dc.identifier.citation
Romero, María Florencia; González, Ana María; Salas, Roberto Manuel; Sylvainia, a new monospecific genus within the subtribe Cephalanthinae (Rubiaceae, Naucleeae); Royal Botanical Society; Plant Ecology and Evolution; 156; 1; 3-2023; 85-111
dc.identifier.issn
2032-3913
dc.identifier.uri
http://hdl.handle.net/11336/232083
dc.description.abstract
Background and aims – The genus Cephalanthus belongs to the tribe Naucleeae together with 26 other genera. Members of Cephalanthus mainly grow in temperate and subtropical wetlands in the Americas and Asia, but there is a single African species that is associated with forest margins and rocky outcrops in moist temperate grasslands. The genus comprises six species and was historically known to have species with a markedly disjunct distribution: three species are from the Americas: C. glabratus, C. occidentalis, and C. salicifolius; two species are from tropical Asia: C. angustifolius and C. tetrandrus, and one species is from tropical Africa: C. natalensis. Recent molecular phylogenetic studies have supported the monophyly of the genus, however, most of the morphological synapomorphies are absent in the only African species, which is sister to the remaining species of the genus. This work aims to provide a short taxonomic revision of the genus Cephalanthus, taking into consideration morphological aspects previously underestimated or not considered, and to describe a new monospecific genus based on comparative morphological analysis. Material and methods – Vegetative and reproductive material from all the species of Cephalanthus were analysed following conventional taxonomy techniques. Key results – We transferred C. natalensis to a new genus, Sylvainia. Morphological similarities and differences between Cephalanthus and the new genus are discussed. Cephalanthus glabrifolius, a poorly known species and previously considered a synonym of C. tetrandrus, is resurrected as a valid species, bringing the number of species in Cephalanthus to six again. All species are described, illustrated, and their known distributions plotted on regional maps. Conclusion – The subtribe Cephalanthinae now has two genera, its type Cephalanthus with six species, and a new monospecific genus Sylvainia endemic to south-eastern Africa. Based on the amended description of Cephalanthus, now absent from Africa, the generic concept is substantially modified, being represented now by three American and three Asian species.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Royal Botanical Society
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Cephalanthus
dc.subject
Rubiaceae
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Sylvainia
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taxonomy
dc.subject.classification
Ciencias de las Plantas, Botánica
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Ciencias Biológicas
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CIENCIAS NATURALES Y EXACTAS
dc.title
Sylvainia, a new monospecific genus within the subtribe Cephalanthinae (Rubiaceae, Naucleeae)
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2024-04-05T11:04:03Z
dc.identifier.eissn
2032-3921
dc.journal.volume
156
dc.journal.number
1
dc.journal.pagination
85-111
dc.journal.pais
Bélgica
dc.journal.ciudad
Meise
dc.description.fil
Fil: Romero, María Florencia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Instituto de Botánica del Nordeste. Universidad Nacional del Nordeste. Facultad de Ciencias Agrarias. Instituto de Botánica del Nordeste; Argentina
dc.description.fil
Fil: González, Ana María. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Instituto de Botánica del Nordeste. Universidad Nacional del Nordeste. Facultad de Ciencias Agrarias. Instituto de Botánica del Nordeste; Argentina
dc.description.fil
Fil: Salas, Roberto Manuel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Instituto de Botánica del Nordeste. Universidad Nacional del Nordeste. Facultad de Ciencias Agrarias. Instituto de Botánica del Nordeste; Argentina
dc.journal.title
Plant Ecology and Evolution
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.5091/plecevo.90423
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