# Three New Species and Three New Records of Arthoniaceae (Ascomycota, Arthoniales) from China

## TL;DR

This study discovers three new lichen species and reports three new records in China, using both physical and genetic analysis.

## Contribution

The paper introduces three new lichen species and provides the first molecular data for the genus Eremothecella.

## Key findings

- Three new species of lichenized fungi were identified in Yunnan, China.
- Three species are reported as new records for China.
- Molecular data for the genus Eremothecella is presented for the first time.

## Abstract

Based on morphological and phylogenetic analyses, during a study on the biodiversity of the lichenized fungi family Arthoniaceae in Yunnan, China, three new species of Arthonia, Eremothecella, and Synarthonia (Arthonia yunnanensis sp. nov., A. pararubella sp. nov., Eremothecella pruinocarpa sp. nov.) and three new Chinese records (A. rubella, E. calamicola, Synarthonia inconspicua) were reported in this present study. A phylogenetic analysis using maximum likelihood and Bayesian inference based on a two-gene dataset (mtSSU and RPB2) revealed that all these species form distinct independent clades. In addition, this study represents the first report of molecular sequences for the genus Eremothecella. Detailed descriptions, ecological and chemical characteristics, and illustrations for each species are provided.