Biosystematic study of tropical Rubiaceae with a focus on the tribes Pavetteae and Ixoreae and on Malagasy representatives of the family


Biosystematic research is executed for representatives of the tribes Pavetteae and Ixoreae (Rubiaceae). Next to revisions and monographic work this also includes detailed morphological, anatomical, palynological studies. At the moment the genus Tarenna s.l. in Madagascar is the main study focus. This genus complex includes circa eight genera (Enterospermum, Homolliella, Homollea, Ixora, Paracephaelis, Schizenterospermum, Robbrechtia, Tarenna) which are urgently in need of generic delimitation and monographic study. Later on more groups of Malagasy Rubiaceae will be studied.


terrestrial, taxonomy, revision, anatomy, morphology, palynology, phytogeography, biogeography, distribution, chorology, pollination biology, botany, Morphology, Systematics and taxonomy, Forests, 3. Systematics, Inventorying and Classification, tropical Africa, paleotropis, neotropis, central Africa, East Africa, Madagascar, Mascarenes, Mascarene Isles, Réunion, Mauritius, Rodrigues, vascular plants, dicotyledons, Rubiaceae, Ixoroideae, Pavetteae, Enterospermum, Homolliella, Homollea, Paracephaelis, Tarenna, Schizenterospermum, Ixora


West-Central Tropical Africa {Geographical scope}
East Tropical Africa {Geographical scope}
Mauritius {Geographical scope}
Madagascar {Geographical scope}
Réunion {Geographical scope}
Rodrigues {Geographical scope}
Forest {Habitat type}


Name Role Start End
De Block, Petra member
Degreef, Jérôme member


Name Role Start End
Flora of tropical Africa unknown


Reference Role
E. Robbrecht, P. De Block & P. Van Hecke (1991) Incomplete rheophytic speciation in Pouchetia (African Rubiaceae - Hypobathreae). Belgian Journal of Botany 124: 137-151 author
P. De Block (1995) Ovary, seed and fruit of Rutidea (Rubiaceae-Pavetteae). Plant Systematics and Evolution 196: 1-17 author
P. De Block, E. Robbrecht & C. Puff (1996)Advances in Rubiaceae research 1993-1995. Opera Botanica Belgica 7: 19-32 author
C. Puff, E. Robbrecht, R. Buchner & P. De Block (1996) Survey of secondary pollen presentation in the Rubiaceae. Opera Botanica Belgica 7: 369-402 author
P. De Block & E. Robbrecht (1997) On the ovary structure of Dictyandra and Leptactina compared with other Pavetteae (Rubiaceae - Ixoroideae), or evolution from multiovulate to uniovulate placentas. Botanische Jahrbücher 119: 99-113 author
P. De Block & E. Robbrecht (1998) 336. Duperrea pavettifolia (Rubiaceae). Curtis's Bot. Mag. 15: 42-49 author
P. De Block (1998) The African species of Ixora (Rubiaceae - Pavetteae). Opera Botanica Belgica 9 (1997): 1-218 author
P. De Block (1998) Rubiaceae. Distribution maps of continental African Ixora spp. Distr. Plant. Afr. 43: map 1421-1470 author
Jansen S., De Block P., Beeckman H. & Smets E. (1999) Systematic wood anatomy of the Pavetteae (Rubiaceae - Ixoroideae). Syst. Geogr. Plants 68: 113-133 author
De Block P. & Robbrecht E. (1999-1998) Pollen morphology of the Pavetteae (Rubiaceae, Ixoroideae) and its taxonomic significance. Grana 37: 260-275 author
Robbrecht E. & De Block P. (1999) The geofrutescent Leptactina species (Rubiaceae, Pavetteae) of the "Flore d'Afrique centrale" area. Syst. Geogr. Plants. 69: 125-133 author
Petra De Block & Anton Igersheim (2001) The stigma of the African genera Rutidea and Nichallea (Rubiaceae-Ixoroideae-Pavetteae): highly modified receptive surfaces. Int. J. Plant Sci. 162: 567-578 author

created:2011-12-14 14:18:59 UTC, source:biodiv

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