Three New Species of Hypoxylon (Xylariales, Ascomycota) on a Multigene Phylogeny from Medog in Southwest China

During a survey of hypoxylaceous fungi in Medog county (Tibet Autonomous Region, China), three new species, including , , and , were described and illustrated based on morphological and multi-gene phylogenetic analyses. is characterized by its yellow-brown stromatal granules, light-brown to brown as...

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Bibliographic Details
Published in:Journal of fungi (Basel) 2022-05, Vol.8 (5), p.500
Main Authors: Song, Zi-Kun, Zhu, An-Hong, Liu, Zhen-Dong, Qu, Zhi, Li, Yu, Ma, Hai-Xia
Format: Article
Language:English
Subjects:
Ascomycota
Ascospores
Datasets
Hypoxylon
Morphology
multigene phylogeny
New species
New taxa
Phylogenetics
Phylogeny
Physical characteristics
Pigments
Ribosomal DNA
RNA polymerase
taxonomy
wood-decomposing fungi
Xylariales
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Summary:During a survey of hypoxylaceous fungi in Medog county (Tibet Autonomous Region, China), three new species, including , , and , were described and illustrated based on morphological and multi-gene phylogenetic analyses. is characterized by its yellow-brown stromatal granules, light-brown to brown ascospores, and frequently indehiscent perispore. is morphologically and phylogenetically related to but differs in having larger ascospores with straight spore-length germ slit and conspicuously coil-like perispore ornamentation. shows morphological similarities to but differs in having Amber (47), Fulvous (43) and Sienna (8) KOH-extractable pigments and larger ascospores with straight spore-length germ slit. The multi-gene phylogenetic analyses inferred from the datasets of ITS-RPB2-LSU-TUB2 supported the three new taxa as separate lineages within . A key to all known species from China and related species worldwide is provided.
ISSN:2309-608X
2309-608X
DOI:10.3390/jof8050500