Nawawia dendroidea, a new synnematous hyphomycete from submerged Phragmites in South Africa

Nawawia dendroidea is described and illustrated based on a sperimen collected on dead Phragmites in a stream in South Africa. The species produces parallel-indeterminate synnemata with dark-brown stipes and white, glistening conidial masses. Phialides are produced terminally on diverging conidiophores, and these produce round-tetrahedral to pyramidal conidia with 3-setulae. The species is compared with the two previously described Nawawia species and species in the similar genera Chalarodes and Phialosporostilbe.