Abstract
A new genus of small-flowered Loranthaceae,Maracanthus, is described from northernmost Colombia and adjacent Venezuela.Maracanthus has indeterminate, spicate inflorescences with decussate, sessile flowers, each bracteolate. It is most closely related toOryctanthus but differs in being functionally dioecious, in having smooth pollen grains, and in lacking the stellate fiber bundles characteristic ofOryctanthus leaves. There are two species,M. chlamydatus (Rizzini) Kuijt (the type species), andM. pedunculatus Kuijt, a new species.

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