Two new species of Ustilaginomycetes on Chrysopogon fallax from Australia

Abstract

Sporisorium fallax sp. nov. (Ustilaginaceae, Ustilaginomycetes) is described and illustrated from inflorescences of Chrysopogon fallax collected in the Northern Territory, Australia. Ribosomal DNA Internal Transcribed Spacer sequences confirmed S. fallax to be distinct from two morphologically similar species, S. tumefaciens and S. tumiforme, on C. fallax. Macalpinomyces tubiformis sp. nov. (Ustilaginaceae, Ustilaginomycetes) is described and illustrated from ovaries of Chrysopogon fallax collected in Queensland, Australia.