In: Sydowia 75, (2022): 013-021; ISSN 0082-0598, DOI 10.12905/0380.sydowia75-2022-013, Published online on November 29, 2022

Honghemyces pterolobii, gen. et sp. nov. (Bezerromycetaceae,
Tubeufiales), a new ascomycetous fungus from
Pterolobium macropterum in Honghe, China

Dhanushka N. Wanasinghe1, Jadson D. P. Bezerra, Jianchu Xu & Peter E. Mortimer

Centre for Mountain Futures, Kunming Institute of Botany, Chinese Academy of Sciences, Honghe County 654400, Yunnan,
China
Setor de Micologia, Departamento de Biociências e Tecnologia, Instituto de Patologia Tropical e Saúde Pública (IPTSP),
Universidade Federal de Goiás (UFG), Rua 235, s/n, Setor Universitário, 74605-050, Goiânia-GO, Brazil

e-mails: dnadeeshan@gmail.com, peter@mail.kib.ac.cn

Wanasinghe D.N., Bezerra J.D.P., Xu J. & Mortimer P.E. (2021) Honghemyces pterolobii, gen. et sp. nov. (Bezerromycetaceae,
Tubeufiales), a new ascomycetous fungus from Pterolobium macropterum in Honghe, China. – Sydowia 75: 13–21.
This study introduces the new genus Honghemyces in the family Bezerromycetaceae (Tubeufiales) based on morphological
features and multi-locus (ITS, LSU, SSU, tef1-a and rpb2) phylogenetic analyses. This fungus was found on dead twigs of Pterolobium
macropterum (Fabaceae) during an expedition to Honghe County in China. Phylogenetically, Honghemyces and Bezerromyces
are related genera in Bezerromycetaceae. Honghemyces pterolobii is morphologically characterised by the production of
semi-immersed to superficial, subglobose and glabrous ascomata, clavate, short pedicellate asci with a minute ocular chamber,
ellipsoidal, hyaline and three-septate ascospores and globose to subglobose chlamydospores forming a chain of a torulose-like
structure.

Keywords: Dothideomycetes, Greater Mekong Subregion, microfungi, molecular phylogeny, taxonomy, Yunnan. – 1 new genus,
1 new species.