The smut fungi (Ustilaginomycetes) of Restionaceae s. lat.

Smut fungi of Restionaceae s. lat. were studied. They are classified into two genera, Restiosporium and Websdanea. Problems of species delimitation in these smuts are discussed. In addition to the nine known smut fungi, thirteen new species are described and illustrated: Restiosporium anarthriae, R. apodasmiae, R. chaetanthi, R. desmocladii, R. eurychordae, R. flexuosum, R. hypolaenae, R. lepyrodiae, R. pallentis, R. patei, R. proliferum, R. spathacei, and R. sphacelatum.