Lycogala exiguum Morgan, J. Cincinnati Soc. Nat. Hist. 15 (3–4): 134 (1893)

Distribution.

Widely distributed worldwide.

Specimen examined.

CHINA • Hubei Province: Houhe National Nature Reserve, on rotten wood, 26 Jun 2019, collected by Shu-Zhen Yan and Min Li (HFNNU 11333) .

Notes.

Lycogala exiguum is considered a species complex at the current level of knowledge (Leontyev et al. 2023 b). In the two-gene phylogenetic tree (Fig. 2), collections identified as L. exiguum, based on morphological characteristics, formed a large clade represented by at least six putative species. However, it is still uncertain which clade represents the “ true ” L. exiguum, as the DNA data of the type specimen are not available. In this study, we describe two new species ( L. annulatum and L. fasciculovesiculiferum) from the L. exiguum complex, both of which differ in morphological characteristics from the original (Morgan 1893) and emended (Leontyev et al. 2023 b) descriptions of L. exiguum . One more species of the complex, L. “ microcapum ”, will be described in a separate paper.