Arcyria similaris: A new myxomycete species from China

ABSTRACT

A new myxomycete species, Arcyria similaris, was reported herein. The specimens were found and collected in the field on dead bark from Jingangtai National Geopark in Henan Province of China. This species has distinct and unique morphological characteristics, including dark grayish olive sporothecae that fade to smoke gray with age, shallow saucer-shaped cups with marked reticulations and thick papillae on the inner surface, a netted capillitium with many bulges, uniformly marked with low, dense, and irregular reticulations, and spores (8.0–)9.3–10.1(–10.9) μm in diameter, marked with sparse small warts and grouped prominent warts. Apart from a comprehensive morphological study, partial sequences of the nuclear 18S rDNA and elongation factor-1 alpha (EF-1α) genes were also provided in this study. This new species was described and illustrated morphologically. The specimens are deposited in the Herbarium of Fungi of Nanjing Normal University (HFNNU).

KEYWORDS:

• Amoebozoa
• phylogeny
• SEM
• taxonomy
• Trichiales
• 1 new taxon

ACKNOWLEDGMENTS

We are grateful to the anonymous reviewers and editors whose comments and suggestions greatly improved the manuscript. We acknowledge the SEM analysis assistance provided by Dr. Yin-Ping Zhang and Mr. You-Sheng Liu at Nanjing Normal University. We also thank Dr. Zheng-Miao Xia and Dr. Gu Rao for their help with molecular experiments.

DISCLOSURE STATEMENT

No potential conflict of interest was reported by the author(s).

SUPPLEMENTARY MATERIAL

Supplemental data for this article can be accessed online at https://doi.org/10.1080/00275514.2024.2312077

Additional information

Funding

This work was supported by the National Natural Science Foundation of China (no. 32070007 and no. 32270005) and the National Science & Technology Fundamental Resources Investigation Program of China (no. 2019FY101808).