Abstract
The identity of a very rare smut fungus, Entyloma anadelphiae, described from infected leaves and stems of Anadelphia pumila (Poaceae, subfam. Panicoideae, tribe Andropogoneae) in Guinea is re-evaluated. Morphology indicates that this species is not identical with Jamesdicksonia dactylidis, with which it has been considered synonymous in recent smut monographs. It differs in having mostly dark brown spores with thicker, distinctly two-layered walls. Entyloma anadelphiae also differs from other smut species of the order Georgefischeriales described on hosts of the Andropogoneae. The species is redescribed, illustrated and reallocated to the genus Jamesdicksonia as a distinct species, Jamesdicksonia anadelphiae comb. nov.