A large-scale species level dated angiosperm phylogeny for evolutionary and ecological analyses.

Phylogenies are a central and indispensable tool for evolutionary and ecological research. Even though most angiosperm families are well investigated from a phylogenetic point of view, there are far less possibilities to carry out large-scale meta-analyses at order level or higher. Here, we reconstructed a large-scale dated phylogeny including nearly 1/8th of all angiosperm species, based on two plastid barcoding genes, matK (incl. trnK) and rbcL. Novel sequences were generated for several species, while the rest of the data were mined from GenBank. The resulting tree was dated using 56 angiosperm fossils as calibration points. The resulting megaphylogeny is one of the largest dated phylogenetic tree of angiosperms yet, consisting of 36,101 sampled species, representing 8,399 genera, 426 families and all orders. This novel framework will be useful for investigating different broad scale research questions in ecological and evolutionary biology

A new species of Aulacocalyx (Rubiaceae, Gardenieae) from southern Cameroon

Aulacocalyx camerooniana is described as a new species from Engon, (S Efoulan) in southern Cameroon. Its diagnostic characteristics are elucidated, notes on its conservation status are given and an updated key to species of Aulacocalyx occurring in Cameroon is provided. © The Board of Trustees of the Royal Botanic Gardens, 2005.SCOPUS: ar.jinfo:eu-repo/semantics/publishe

The phylogenetic structure of plant assemblages in tropical Africa: from local community to biogeographical scales

info:eu-repo/semantics/nonPublishe

Filière bois d'oeuvre et gestion des forêts naturelles : les bois tropicaux et les forêts d'Afrique centrale face aux évolutions des marchés

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