Flora of Cameroon - Annonaceae Vol 45.

Annonaceae is a major pantropical family with 113 genera and about 2550 species. Cameroon is one of the most biodiverse countries in Africa but its flora remains incompletely known. In this volume of the Flora of Cameroon, we describe 166 native taxa representing 163 species in 28 native genera within the family Annonaceae.

Floral evolution by simplification in Monanthotaxis (Annonaceae) and hypotheses for pollination system shifts.

Simplification by reduction has occurred many times independently in the floral evolution of angiosperms. These reductions have often been attributed to changes in reproductive biology. In the angiosperm plant family Annonaceae, most species have flowers with six petals, and many stamens and carpels.

Correlated evolutionary rates across genomic compartments in Annonaceae.

The molecular clock hypothesis is an important concept in biology. Deviations from a constant rate of nucleotide substitution have been found widely among lineages, genomes, genes and individual sites. Phylogenetic research can accommodate for these differences in applying specific models of evolution.

A nonet of novel species of (Annonaceae) from around Africa.

As part of an ongoing revision of the genus Baill. (Annonaceae), nine new species are described and one variety is reinstated to species rank. Two new species from West Africa ( P.