ENCEPHALARTOS SUCCESSIBUS (ZAMIACEAE) - A NEW SPECIES FROM UGANDA

Encephalartos successibus, a new species from Uganda, is described, il lustrated and circumscribed in terms of other tropical African arbores cent species of Encephalartos. It is a large arborescent plant, with m ostly non-overlapping leaflets. The strobili are green and glabrous; t he megastrobilus is ovoid, shortly pedunculate but with peduncle burie d in cataphylls so that the megastrobilus appears to be sessile, with the exposed faces of the megasporophylls more or less smooth; the micr ostrobili emerge in succession, being narrowly ovoid, long-pedunculate , with the exposed faces of the microsporophylls smooth.