Morphological and molecular identification of two new Marasmiellus species (Omphalotaceae, Agaricales) from Thailand

By

Lu, Wenhua
Nutaratat, Pumin
Kumla, Jaturong
Tibpromma, Saowaluck
Elgorban, Abdallah M.
Karunarathna, Samantha C.
Suwannarach, Nakarin

Type

Article

Date of Publication

2024

Original Publication

MycoKeys

Volume

109

Pages

31--48

Subjects

Basidiomycota , new taxa , omphalioid mushroom , taxonomy , wood-decaying mushroom

Contributed by

Pensoft Publishers

Language

English

Published by

Sofia, Bulgaria Pensoft Publishers 2011-

Identifiers

DOI: https://doi.org/10.3897/mycokeys.109.129791

 

Abstract

Marasmiellus (Omphalotaceae, Agaricales) specimens collected in Thailand were investigated based on morphological characteristics and molecular phylogenetic analyses. In the present study, two species are introduced as new to science, namely Marasmiellus thailandicus and M. minutisporus. Phylogenetic analyses were carried out based on the internal transcribed spacer (nrITS) and nuclear ribosomal RNA large subunit (nrLSU) regions, and the results revealed that the two new taxa are distinct species within Marasmiellus. Another specimen was identified as M. scandens and is reported for the first time with morphology and molecular data from Thailand. Descriptions, illustrations, and phylogenetic results are provided. In addition, M. diaphanus and M. colocasiae are proposed as new combinations of Collybiopsis diaphana and Paramarasmius colocasiae, respectively, based on the phylogenetic evidence.