Published June 1, 2026
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Two new wood-decaying fungi, Resupinatus tropicus and Scopuloides hainanensis (Agaricomycetes, Basidiomycota) from Hainan Province, southern China
Authors/Creators
- 1. School of Ecology and Nature Conservation, Beijing Forestry University, Beijing, China
- 2. CAS Key Laboratory of Forest Ecology and Silviculture, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, China
- 3. School of Ecology and Nature Conservation, Beijing Forestry University, Beijing, China|Coconut Research Institute, Chinese Academy of Tropical Agricultural Sciences, Hainan, China
Description
Wood-decaying fungi are among the most important groups of macrofungi with crucial ecological roles and economic values. In this study, two new wood-decaying fungal species, Resupinatus tropicus and Scopuloides hainanensis, are described from Hainan, southern China, based on the morphological and phylogenetic approaches. Resupinatus tropicus is characterized by sessile, gelatinous, flabelliform or occasional suborbicular basidiomata with lamellate hymenophore, a monomitic hyphal system bearing clamp connections on generative hyphae, the presence of cheilocystidia and pleurocystidia, and cylindrical to oblong-ellipsoid basidiospores. Scopuloides hainanensis is characterized by resupinate, membranaceous basidiomata with grandinioid, white to gray hymenial surface, a monomitic hyphal system with simple-septate generative hyphae, the presence of subulate to fusiform lamprocystidia, and subcylindrical to allantoid basidiospores. The phylogenetic analyses showed that Resupinatus abieticola, R. alboniger, R. americanus, and R. tropicus grouped together to form a distinct and well-supported clade using ITS + nLSU genetic loci. Scopuloides hainanensis was closely related to S. hydnoides and S. yunnanensis with strong support. A full description, illustrations, and phylogenetic analyses results of the two new species are provided. In addition, keys to the known species of Resupinatus and Scopuloides in China are presented.
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