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

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

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 affini...

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Main Authors: Hermann Taedoumg, Bonaventure Sonké, Perla Hamon, Petra De Block
Format: Article
Language:English
Published: Pensoft Publishers 2017-07-01
Series:PhytoKeys
Online Access:https://phytokeys.pensoft.net/articles.php?id=13623
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spelling doaj-e032378d17294201858919503eeb78b42020-11-24T23:57:18ZengPensoft PublishersPhytoKeys1314-20111314-20032017-07-018310311810.3897/phytokeys.83.1362313623 Craterispermum capitatum and C. gabonicum (Rubiaceae): two new species from the Lower Guinean and Congolian DomainsHermann Taedoumg0Bonaventure Sonké1Perla Hamon2Petra De Block3Bioversity InternationalUniversity of Yaoundé IInstitut de Recherche pour le DéveloppementBotanic Garden Meise 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. https://phytokeys.pensoft.net/articles.php?id=13623
collection DOAJ
language English
format Article
sources DOAJ
author Hermann Taedoumg
Bonaventure Sonké
Perla Hamon
Petra De Block
spellingShingle Hermann Taedoumg
Bonaventure Sonké
Perla Hamon
Petra De Block
Craterispermum capitatum and C. gabonicum (Rubiaceae): two new species from the Lower Guinean and Congolian Domains
PhytoKeys
author_facet Hermann Taedoumg
Bonaventure Sonké
Perla Hamon
Petra De Block
author_sort Hermann Taedoumg
title Craterispermum capitatum and C. gabonicum (Rubiaceae): two new species from the Lower Guinean and Congolian Domains
title_short Craterispermum capitatum and C. gabonicum (Rubiaceae): two new species from the Lower Guinean and Congolian Domains
title_full Craterispermum capitatum and C. gabonicum (Rubiaceae): two new species from the Lower Guinean and Congolian Domains
title_fullStr Craterispermum capitatum and C. gabonicum (Rubiaceae): two new species from the Lower Guinean and Congolian Domains
title_full_unstemmed Craterispermum capitatum and C. gabonicum (Rubiaceae): two new species from the Lower Guinean and Congolian Domains
title_sort craterispermum capitatum and c. gabonicum (rubiaceae): two new species from the lower guinean and congolian domains
publisher Pensoft Publishers
series PhytoKeys
issn 1314-2011
1314-2003
publishDate 2017-07-01
description 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.
url https://phytokeys.pensoft.net/articles.php?id=13623
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AT bonaventuresonke craterispermumcapitatumandcgabonicumrubiaceaetwonewspeciesfromthelowerguineanandcongoliandomains
AT perlahamon craterispermumcapitatumandcgabonicumrubiaceaetwonewspeciesfromthelowerguineanandcongoliandomains
AT petradeblock craterispermumcapitatumandcgabonicumrubiaceaetwonewspeciesfromthelowerguineanandcongoliandomains
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