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A. R.  Marshall, Couvreur, T. L. P., Summers, A. L., Deere, N. J., Luke, Q. W. R., Ndangalasi, H. J., Sparrow, S., and Johnson, D. M., ?A new species in the tree genus Polyceratocarpus (Annonaceae) from the Udzungwa Mountains of Tanzania?, PhytoKeysPhytoKeys, In Press.