sirdavidia, an extraordinary new genus of annonaceae from gabon

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ID: 165538
2015
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Abstract
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.
Reference Key
couvreur2015phytokeyssirdavidia, Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Thomas L.P. Couvreur, Raoul Niangadouma, Bonaventure Sonké, Hervé Sauquet
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Journal thinking through fairbairn: exploring the object relations model of mind
Year 2015
DOI
10.3897/phytokeys.46.8937
URL
http://phytokeys.pensoft.net/lib/ajax_srv/article_elements_srv.php?action=download_pdf&item_id=4665
Keywords
Botany

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