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Palynological characters and their phylogenetic signal in Rubiaceae
In the 1990s Rubiaceae became a hot spot for systematists, mainly due to the comprehensive treatment of the family by Robbrecht in 1988. Next to the exploration of macromolecular characters to inferExpand
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Pollen morphology of the Pavetteae (Rubiaceae, Ixoroideae) and its taxonomic significance
Pollen grains of the tribe Pavetteae (Rubiaceae, subfamily Ixoroideae) are examined using LM and SEM. Grains are 3‐ or 4‐colporate and (semi‐) tectate (in one Versteegia species atectate). SexineExpand
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Coffeatoshii sp. nov. (Rubiaceae) from Madagascar
A new species of Coffea from southern central Madagascar, C. toshii, is described and illustrated. The new species is similar to C. buxifolia but differs due to its short, broad spreading habit (vsExpand
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Coffea anthonyi, a new self-compatible Central African coffee species, closely related to an ancestor of Coffea arabica.
Coffea anthonyi Stoff. & F. Anthony from Cameroon and the Republic of Congo is formally described. Morphological, biochemical and molecular characteristics, isozyme diversity and phylogeneticExpand
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Robbrechtia, a New Rubiaceae Genus from Madagascar
Two new Rubiaceae species, Robbrechtia grandifolia and R. milleri from Madagascar are described. Clearly belonging to the tribe Pavetteae, the species possess an unusual combination of charactersExpand
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The tribal placement of the monospecific tropical African genus Petitiocodon (Rubiaceae) based on molecular data and morphology
A first phylogenetic placement of Petitiocodon based on molecular sequence data from three plastid regions (accD-psa1, rpl16 and trnL-F) is presented, in conjunction with a reassessment of morphologyExpand
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