New Chinese Jelly Fungi Reveal Hidden Diversity

A recent study published in MycoKeys expanded knowledge of the toothed jelly fungi found across China by formally describing three previously unknown species of Pseudohydnum. The work was carried out by Tai‑Jie Yu, Wen‑Hao Zhang, Xiu‑Juan Li, Yuan‑Yuan Xiong, Yu‑Xian Gao, Ting Li, Rou Xue, Yuan‑Tian Lu, Chang Xu, Jia Li, and Li‑Ping Tang and appeared online on 28 October 2026 as volume 142 (pages 265–291) with DOI 10.3897/mycokeys.142.215470 ¹.

The researchers used an integrative approach that combined detailed morphological examination under a microscope with multi‑marker phylogenetic analysis based on ITS, nrLSU, and rpb1 gene sequences. This methodology resolved cryptic diversity within the genus, which had historically been treated broadly around the single species Pseudohydnum gelatinosum. By re‑assessing Chinese collections, they identified three new taxa—P. ellipsosporum, P. macroumbrosum, and P. roseolostipitatum—and refined the circumscriptions of four previously described species. These findings underscore how integrative approaches combining molecular techniques with traditional microscopy can uncover unexpected patterns of speciation driven by ecological specialization or geographic isolation over time ¹.

In addition to the taxonomic revisions, the study documented a novel host association: specimens of Pseudohydnum brunneiceps were consistently found growing on decayed bamboo (Phyllostachys edulis) in China—a substrate never before reported for this species. The discovery highlights the importance of examining diverse substrates when surveying fungal biodiversity, especially for groups like Pseudohydnum where hidden diversity is common. It also suggests that foragers looking for edible jelly fungi should pay attention not only to typical wood decay but also to plant debris such as bamboo.

The authors noted that their multi‑marker phylogenetic framework resolved seven distinct lineages across the examined material, providing robust genetic data that will aid future taxonomic revisions within the Auriculariales order. Their work adds valuable insight into the biogeography of these fungi, revealing both intraspecific morphological variation and geographic distribution patterns across different Chinese provinces. For mycologists and mushroom enthusiasts alike, the new species names and detailed descriptions provide a clearer guide for identifying Pseudohydnum in the field and in herbarium collections.

While the paper focuses on taxonomy rather than culinary use, its implications extend to foraging communities by clarifying which species are present in specific habitats.