Three new species of Craterispermum (Rubiaceae) from Madagascar

Block, Petra De; Randriamboavonjy, Tianjanahary

doi:10.11646/phytotaxa.206.1.11

Cited by 3 publications

(3 citation statements)

References 9 publications

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“…As mentioned earlier, the Psychotrieae alliance is represented by five of its nine tribes (Craterispermeae, Gaertnereae, Morindeae, Palicoureeae, and Psychotrieae) in the WIOR. The monogeneric tribe Craterispermeae is an Afro‐Malagasy‐Seychelles group with about 31 species that has its center of species diversity in tropical Africa (20 species, Taedoumg and Hamon, 2013) and Madagascar (at least 10 species, De Block and Randriamboavonjy, 2015), with only a single species endemic to the Seychelles (Friedmann, 1994). The Malagasy Craterispermum are the result of a single colonization event from Africa that took place in the Pliocene‐Pleistocene.…”

Section: Discussionmentioning

confidence: 99%

Historical biogeography and phylogeny of the pantropical Psychotrieae alliance (Rubiaceae), with particular emphasis on the Western Indian Ocean Region

Razafimandimbison

Kainulainen

Wikström

et al. 2017

American J of Botany

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This study reinforces the pivotal role of dispersal in shaping the WIOR biodiversity and as the critical initiating step in the generation of endemic biodiversity on its islands. The WIOR alliance shows strong Asian and Pacific affinities despite the proximity of the region to Africa. Madagascar has served as a stepping-stone for subsequent dispersal to the rest of the region. The Afro-Malagasy-Seychelles genus Craterispermum and the Malagasy Puffia may represent relictual lineages.

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Section: Discussionmentioning

confidence: 99%

Historical biogeography and phylogeny of the pantropical Psychotrieae alliance (Rubiaceae), with particular emphasis on the Western Indian Ocean Region

Razafimandimbison

Kainulainen

Wikström

et al. 2017

American J of Botany

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“…Bremekamp (1934a, 1940), Arènes (1960), Verdcourt (1981, 1988a,b), Robbrecht (1984), Bridson & Robbrecht (1985), Andreasen & Bremer (2000), De Block (2003, 2022), Mouly & al. (2014), Kainulainen & al.…”

Section: Resultsmentioning

confidence: 99%

Phylogeny and classification of the coffee family (Rubiaceae, Gentianales): Overview and outlook

Razafimandimbison,

Rydin

2024

TAXON

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The use of molecular data in phylogenetic reconstruction during more than three decades has greatly improved our understanding of the macroevolutionary history of the coffee family (Rubiaceae) and has provided a solid basis for improvement of its classification. Based on the results of 130 studies, among them most recent phylogenomic works, we present a consensus phylogeny and a robust classification of Rubiaceae that shed light on the evolutionary success of this highly diverse angiosperm family and can serve as a framework for ecological and evolutionary studies. There are more than 14,000 species and about 580 accepted genera of Rubiaceae that are assigned to 71 tribes, of which 68 are classified in two subfamilies (Dialypetalanthoideae with 38 tribes and Rubioideae with 30 tribes). Three tribes (Acranthereae, Coptosapelteae, Luculieae) remain unclassified as to subfamily. Sixty‐three of these 71 tribes are assigned to nine informal alliances (four in Rubioideae and five in Dialypetalanthoideae). These tribes are listed in alphabetical order within their respective alliances. Five tribes, one (Coussareeae) in Rubioideae and four (Airospermeae, Jackieae, Retiniphylleae, Steenisieae) in Dialypetalanthoideae, are excluded from these alliances due to unclear or conflicting phylogenetic positions. Thirty‐six tribes retain their tribal status but receive new generic limits to remedy their previous para‐ or polyphyletic nature. Twenty‐nine tribes not implemented in previous classifications have been added, of which three (Chioneae, Glionnetieae, Temnopterygeae) are newly described here. Basic information on phylogenies, distributions, former classifications, and useful references to previous works are provided for all accepted tribes, and future perspectives are discussed.

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“…(Rubiaceae, subfamily Rubioideae) is distributed in tropical Africa, Madagascar and the Seychelles (Robbrecht 1988, Taedoumg et al 2011, Taedoumg and Hamon 2013; De Block and Randriamboavonjy 2015). Craterispermum species are shrubs or small trees with axillary or supra-axillary inflorescences, paired at the nodes and often condensed.…”

Section: Introductionmentioning

confidence: 99%

Craterispermum capitatum and C. gabonicum (Rubiaceae): two new species from the Lower Guinean and Congolian Domains

Taedoumg¹,

Sonké²,

Hamon³

et al. 2017

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Craterispermum capitatum and C. gabonicum, two new species of Rubiaceae, are described from the Lower Guinea and Congolian Domains. Detailed descriptions and distribution maps are provided for each species, their conservation status is assessed and their taxonomic affinities are discussed. Craterispermum gabonicum is unique within the genus because of the strong dimorphism in brevistylous and longistylous flowers and inflorescences. We hypothesize that this species shows some form of dioecy. The distribution of C. capitatum shows a wide disjunction: the species is present in the Lower Guinean and Congolian Domains but absent from Gabon and South Cameroon. An identification key for the Craterispermum species present in the Lower Guinean and Congolian Domains is given.

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Three new species of Craterispermum (Rubiaceae) from Madagascar

Cited by 3 publications

References 9 publications

Historical biogeography and phylogeny of the pantropical Psychotrieae alliance (Rubiaceae), with particular emphasis on the Western Indian Ocean Region

Historical biogeography and phylogeny of the pantropical Psychotrieae alliance (Rubiaceae), with particular emphasis on the Western Indian Ocean Region

Phylogeny and classification of the coffee family (Rubiaceae, Gentianales): Overview and outlook

Craterispermum capitatum and C. gabonicum (Rubiaceae): two new species from the Lower Guinean and Congolian Domains

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