Three new taxa of lichen genus Trimmatothelopsis (Acarosporales, Acarosporaceae) from China

By

Wang, Jiaxin
Liang, Fuhui
Zhao, Zuntian
Hu, Ling

Type

Article

Date of Publication

2025-8-13

Original Publication

MycoKeys

Volume

120

Pages

277--293

Subjects

Ascus stains , new species , saxicolous lichen , taxonomy

Contributed by

Pensoft Publishers

Language

English

Published by

Sofia, Bulgaria Pensoft Publishers 2011-

Identifiers

DOI: https://doi.org/10.3897/mycokeys.120.158033

 

Abstract

Three new species Trimmatothelopsis anthracina, T. knudsenii, and T. shandongensis are reported from the eastern coast of China, based on morphological, chemical and molecular data (ITS, LSU, and mtSSU). All three new species have IKI+ blue ascus. Trimmatothelopsis anthracina is characterized by carbonized apothecia, a biofilm at the immature apothecia base, and IKI+ blue turning red hymenial gel. Trimmatothelopsis knudsenii is characterized by rimose thallus, numerous reddish brown apothecia, and IKI+ blue turning red hymenial gel. Trimmatothelopsis shandongensis is characterized by dull brown thallus, thick hymenium, IKI+ red hymenial gel, and small asci. Comprehensive descriptions, detailed illustrations, and phylogenetic analysis of the new taxa are presented. Additionally, a worldwide key to Trimmatothelopsis species, including 21 species, is provided.