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Revision of the African genus Uvariastrum (Annonaceae).

Couvreur TL - PhytoKeys (2014)

Bottom Line: The genus is mainly found in the tropical lowland rain forests of Africa, with one species growing in a drier woodland habitat.The species name Uvariastrum pynaertii De Wild is reduced into synonymy with Uvariastrum zenkeri Engl. & Diels.Furthermore, all species are illustrated by line drawings and all species are mapped.

View Article: PubMed Central - PubMed

Affiliation: Institut de Recherche pour le Développement, UMR-DIADE, BP 64501, F-34394 Montpellier cedex 5, France ; Université de Yaoundé I, Ecole Normale Supérieure, Département des Sciences Biologiques, Laboratoire de Botanique systématique et d'Ecologie, B.P. 047, Yaoundé, Cameroon ; Naturalis Biodiversity Center (section NHN), Wageningen University, Generaal Foulkesweg 37, 6703 BL, Wageningen, The Netherlands.

ABSTRACT
The genus Uvariastrum (Annonaceae) is restricted to continental Africa and is characterized by sepals with folded margins, few carpels and numerous stamens. The genus is mainly found in the tropical lowland rain forests of Africa, with one species growing in a drier woodland habitat. The species name Uvariastrum pynaertii De Wild is reduced into synonymy with Uvariastrum zenkeri Engl. & Diels. Uvaraistrum neglectum Paiva and Uvariastrum modestum Dielsare transferred to the genus Uvaria leading to two new combinations: Uvaria modesta (Diels) Couvreur, comb. nov. and Uvaria paivana Couvreur, nom. nov. Five species are currently recognized in Uvariastrum. The present revision, the first of the genus for over 100 years, provides an overview of previously published information and discussions on morphology, taxonomy and palynology. Preliminary conservation status assessments are provided for each species, as well as diagnostic keys for fruiting and flowering material as well as detailed species descriptions. Furthermore, all species are illustrated by line drawings and all species are mapped.

No MeSH data available.


Uvariastrum germainii. A Flowering branch B Flower C Transversal cut of flower showing carpels and stamens D detail of sepals E detail of carpels and ovule placentation F stamen G detail of a monocarp. Drawings by Fadia, EPHE in MNHN-Palynothèque (Paris).
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Figure 5: Uvariastrum germainii. A Flowering branch B Flower C Transversal cut of flower showing carpels and stamens D detail of sepals E detail of carpels and ovule placentation F stamen G detail of a monocarp. Drawings by Fadia, EPHE in MNHN-Palynothèque (Paris).

Mentions: Figure 5


Revision of the African genus Uvariastrum (Annonaceae).

Couvreur TL - PhytoKeys (2014)

Uvariastrum germainii. A Flowering branch B Flower C Transversal cut of flower showing carpels and stamens D detail of sepals E detail of carpels and ovule placentation F stamen G detail of a monocarp. Drawings by Fadia, EPHE in MNHN-Palynothèque (Paris).
© Copyright Policy - creative-commons-attribution
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC3921557&req=5

Figure 5: Uvariastrum germainii. A Flowering branch B Flower C Transversal cut of flower showing carpels and stamens D detail of sepals E detail of carpels and ovule placentation F stamen G detail of a monocarp. Drawings by Fadia, EPHE in MNHN-Palynothèque (Paris).
Mentions: Figure 5

Bottom Line: The genus is mainly found in the tropical lowland rain forests of Africa, with one species growing in a drier woodland habitat.The species name Uvariastrum pynaertii De Wild is reduced into synonymy with Uvariastrum zenkeri Engl. & Diels.Furthermore, all species are illustrated by line drawings and all species are mapped.

View Article: PubMed Central - PubMed

Affiliation: Institut de Recherche pour le Développement, UMR-DIADE, BP 64501, F-34394 Montpellier cedex 5, France ; Université de Yaoundé I, Ecole Normale Supérieure, Département des Sciences Biologiques, Laboratoire de Botanique systématique et d'Ecologie, B.P. 047, Yaoundé, Cameroon ; Naturalis Biodiversity Center (section NHN), Wageningen University, Generaal Foulkesweg 37, 6703 BL, Wageningen, The Netherlands.

ABSTRACT
The genus Uvariastrum (Annonaceae) is restricted to continental Africa and is characterized by sepals with folded margins, few carpels and numerous stamens. The genus is mainly found in the tropical lowland rain forests of Africa, with one species growing in a drier woodland habitat. The species name Uvariastrum pynaertii De Wild is reduced into synonymy with Uvariastrum zenkeri Engl. & Diels. Uvaraistrum neglectum Paiva and Uvariastrum modestum Dielsare transferred to the genus Uvaria leading to two new combinations: Uvaria modesta (Diels) Couvreur, comb. nov. and Uvaria paivana Couvreur, nom. nov. Five species are currently recognized in Uvariastrum. The present revision, the first of the genus for over 100 years, provides an overview of previously published information and discussions on morphology, taxonomy and palynology. Preliminary conservation status assessments are provided for each species, as well as diagnostic keys for fruiting and flowering material as well as detailed species descriptions. Furthermore, all species are illustrated by line drawings and all species are mapped.

No MeSH data available.