%0 Journal Article
%9 ACL : Articles dans des revues avec comité de lecture répertoriées par l'AERES
%A Couvreur, Thomas
%A Niangadouma, R.
%A Sonké, B.
%A Sauquet, H.
%T Sirdavidia, an extroardinary new genus of Annonaceae from Gabon
%D 2015
%L fdi:010063340
%G ENG
%J PhytoKeys
%@ 1314-2011
%K PLANTE SAUVAGE ; FORET DENSE ; GENRE NOUVEAU ; ESPECE NOUVELLE ; PHYLOGENIE ; ANATOMIE VEGETALE ; DIAGNOSE ; PHENOLOGIE ; SPECIMEN TYPE ; POLLINISATION
%K GABON
%M ISI:000351791200001
%P 1-19
%R 10.3897/phytokeys.46.8937
%U https://www.documentation.ird.fr/hor/fdi:010063340
%> https://horizon.documentation.ird.fr/exl-doc/pleins_textes/divers15-02/010063340.pdf
%V 46
%W Horizon (IRD)
%X A distinctive new monotypic genus from Gabon is described in the tropical plant family Annonaceae: Sirdavidia, in honor to Sir David Attenborough. Molecular phylogenetic analyses confirm that Sirdavidia, which is very distinct from a morphological standpoint, is not nested in any existing genus of Annonaceae and belongs to tribe Piptostigmateae (subfamily Malmeoideae), which now contains a total of six genera. The genus is characterized by long acuminate leaves, fully reflexed red petals, 16-19 bright yellow, loosely arranged stamens forming a cone, and a single carpel topped by a conspicuous stigma. With just three known collections, a preliminary IUCN conservation status assessment is provided as ?endangered? as well as a distribution map. The discovery of Sirdavidia is remarkable at several levels. First, it was collected near the road in one of the botanically best-known regions of Gabon: Monts de Cristal National Park. Second, its sister group is the genus Mwasumbia, also monotypic, endemic to a small area in a forest in Tanzania, some 3000 km away. Finally, the floral morphology is highly suggestive of a buzz pollination syndrome. If confirmed, this would be the first documentation of such a pollination syndrome in Magnoliidae and early-diverging angiosperms in general.
%$ 076BOTA01