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T. L. P.  Couvreur, Botermans, M., van Heuven, B. J., and Van der Ham, R. W. J. M., ?Pollen morphology within the Monodora clade, a diverse group of five African Annonaceae genera?, GranaGrana, vol. 47, pp. 185-210, 2008.

T.  Chaowasku, Johnson, D. M., Van der Ham, R. W. J. M., and Chatrou, L. W., ?Characterization of Hubera (Annonaceae), a new genus segregated from Polyalthia and allied to Miliusa?, Phytotaxa, vol. 69, 2012.

T. L. P.  Couvreur, Botermans, M., van Heuven, B. J., and Van der Ham, R. W. J. M., ?Pollen morphology within the Monodora clade, a diverse group of five African Annonaceae genera?, Grana, vol. 47, pp. 185-210, 2008.

T. L. P.  Couvreur, Van der Ham, R. W. J. M., Mbele, Y. M., Mbago, F. M., and Johnson, D. M., ?Molecular and morphological characterization of a new monotypic genus of Annonaceae, Mwasumbia, from Tanzania?, Systematic Botany, vol. 34, pp. 266-276, 2009.

T. L. P.  Couvreur, Botermans, M., van Heuven, B. J., and Van der Ham, R. W. J. M., ?Pollen morphology within the Monodora clade, a diverse group of five African Annonaceae genera?, Grana, vol. 47, pp. 185-210, 2008.