Parafuscosporella garethii sp nov (Fuscosporellales) from a rivulet in a community-based northern forest, in Thailand

Abstract

Parafuscosporella garethii, a new freshwater taxon, is described and illustrated from submerged decaying twigs in a Thai community forest located in Chiang Mai Province. The species is recognized as the third species in the genus, and markedly differs from those previously accepted in the genus by its conidial size and shape and having two forms of conidiogenous cells. Phylogenetic analysis based on combined LSU, SSU and RPB2 sequence data place P. garethii in Fuscosporellales, Hypocreomycetidae, Sordariomycetes. The novel taxon is compared with morphologically and phylogenetically similar species in the genus and a taxonomic comparison to accepted Parafuscosporella species is also provided.