The systematic wood anatomy of the Moraceae (Urticales) I. Tribe Castilleae

The wood anatomy of the tribe Castilleae sensu Berg is described. Similarities and differences are discussed in relation to his concepts of the taxonomy of the tribe. The wood anatomical variation does not enable to distinguish between Maquira, Perebea and Pseudolmedia. Antiaris, Castilla, Helicostylis, Mesogyne and Naucleopsis can be recognised on the basis of slight differences. However, no reasons are found to question the delimitation of the Castilleae sensu Berg on the basis of their wood anatomy.