Candolleomyces luteopallidus (A. H. Sm.) D. Wacht. & A. Melzer, 2020

Yang, Kun L., Lin, Jia Y., Li, Guang-Mei & Yang, Zhu L., 2025, Introducing one new genus and two new species of Psathyrellaceae (Basidiomycota, Agaricales), with notes on Candolleomyces and Ephemerocybe, Phytotaxa 702 (1), pp. 1-28 : 16

(3.4) Candolleomyces luteopallidus complex

Notes:— In the ITS-only phylogeny ( Fig. 4B ), two collections of ours and two collections labeled as Candolleomyces luteopallidus established a monophyletic group with internal pairwise variations around 1% by significant support. In the four-locus phylogeny ( Fig. 4A ), two of our collections and another collection with complete four-locus data were analysed for this group, and they formed a distinct monophyletic group with significant support. This group is referred to as the Candolleomyces luteopallidus complex in this study, characterized by typically slender basidiomata with a reddish-brown to brownish pileus and a terrestrial habit. Based on the recent scale of species delimitation within Candolleomyces in academia, two undescribed species appear to exist within this complex.

Legitimately proposed species recognized in this complex:— Cd. luteopallidus (A.H. Sm.) D. Wächt. & A. Melzer (2020) .

Collections sequenced in this study:— China, Guangdong Province, Guangzhou City, elevation 30 m, 2023, Jia Y. Lin, L23410 ( HTBM1391 ) and L23455 ( HTBM1436 ).

Figures

FIGURE 4. Phylogeny of Candolleomyces inferred from concatenated ITS-nrLSU-tef-1α-β-tub alignment (A; all samples with sequence data complete in the four loci) or ITS alignment (B). Nodes are annotated if supported by ≥50% MLB or ≥0.9 BPP. Branches shortened to fit the page are indicated by two diagonal lines, followed by the number of times shortened. Collections sequenced in this study are highlighted in gold. Holotypes, epitypes, and neotypes are indicated by HT, ET, and NT, respectively. Photos and line drawings of our collections, and species delimitation results are attached.