Two new species in Capillidium (Ancylistaceae, Entomophthorales) from China, with a proposal for a new combination

Abstract

A taxonomic revision of Conidiobolus s.l. (Ancylistaceae, Entomophthorales) delimited all members that form capilliconidia into the genus Capillidium. In this study, we report two new species of Capillidium that were isolated in China. Capillidium macrocapilliconidiumsp. nov. is characterised by large capilliconidia. Capillidium jiangsuensesp. nov. is differentiated by large capilliconidia and long, slender secondary conidiophores. Phylogenetic analyses were performed using sequences from the nuclear large subunit of rDNA (nucLSU), the mitochondrial small subunit of rDNA (mtSSU) and elongation-factor-like (EFL). The analyses revealed sister relationships between Ca. macrocapilliconidiumsp. nov. and Ca. globuliferus / Ca. pumilum and between Ca. jiangsuensesp. nov. and Ca. denaeosporum. Additionally, a new combination of Ca. rugosum (Drechsler) B. Huang & Y. Nie comb. nov. is proposed herein. An identification key is provided for the ten accepted Capillidium species.