Conioscypha tenebrosa sp. nov. (Conioscyphaceae) from China and notes on Conioscypha species

Abstract

Conioscypha is an asexual morph genus placed in the family Conioscyphaceae. During our study of brown-spored hyphomycetes, a new taxon C. tenebrosa was found on decaying wood collected in Guizhou Province, China. The new species is characterized by having micronematous, hyaline conidiophores which are often reduced to conidiogenous cells, with a cup-shaped, percurrently developed, multi-collaretted phialide, and globose to subglobose, obovoid conidia with broadly rounded apex and subtruncate base. The phylogenetic analysis of combined LSU, SSU, ITS and RPB2 sequence data showed that isolates of C. tenebrosa are phylogenetically distinct from other species. Conioscypha tenebrosa sp. nov. is therefore introduced here with a description and morphological illustration. Taxonomic notes and a morphological comparison of Conioscypha species are provided.

Additions to the Genus Arthrinium (Apiosporaceae) From Bamboos in China

“…we are carrying out the survey of fungal diversity in Karst formations of the Asian region, and many new taxa are described in last few years (Li et al, 2016;Chen et al, 2017Chen et al, , 2020Zhang et al, 2017Zhang et al, , 2019Feng et al, 2019;Liu et al, 2019;Dissanayake et al, 2020b). In this study, seventeen Arthrinium-like were collected in Guizhou and Guangdong province, China and can be recognized as eleven Arthrinium species based on morphological characters and phylogeny inferred from the multi-gene sequences data (ITS, LSU, TUB2, and TEF) analyses, which four new species (A. biseriale, A. cyclobalanopsidis, A. gelatinosum, and A. septatum) and seven known species (A. arundinis, A. garethjonesii, A. guizhouense, A. hydei, A. neosubglobosa, A. phyllostachium and A. psedoparenchymaticum) are introduced and identified, respectively.…”