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Four new species of Ixora (Rubiaceae, Ixoreae) from Brazil are described and illustrated and their relationships to… Expand Species-rich genera often have various conflicting circumscriptions from independent regional flora treatments. Testing the… Expand The tribe Alberteae, presently classified in the subfamily Ixoroideae (Rubiaceae), has historically been an artificial grouping… Expand Abstract Rubiaceae is one of the five largest families of flowering plants with over 13,000 species. We have seen a tremendous… Expand This thesis deals with phylogenetic relationships at different taxonomic levels. All the plants studied are or have been included… Expand SummaryOvule development and gynosporogenesis (megasporogenesis) of two Rubiaceae, Chomelia obtusa (Cinchonoideae–Guettardeae… Expand Recent insight in the phylogeny of the Rubiaceae, mainly based on macromolecular data, agrees better with wood anatomical… Expand Parsimony analyses of morphology, restriction sites of the cpDNA, sequences from the nuclear, ribosomal internal transcribed… Expand The tribe Gardenieae in the restricted delimitation proposed by Bremekamp and Verdcourt is wood anatomically homogeneous. The… Expand