What question did this study set out to answer?

This research aims to describe a new genus and species of the Boletaceae family from tropical China.

February 19, 2026Journal of Fungi0 citationsOpen Access

Similiboletinus tomentopileatus gen. et sp. nov. from Tropical China, a New Boletoid Taxon Based on Morphological and Molecular Data

Key Points

This research aims to describe a new genus and species of the Boletaceae family from tropical China.
Conducted morphological analyses based on collected samples from a tropical region of China.
Performed phylogenetic analyses using a multigene dataset including LSU, rpb2, tef1-α, and atp6.
Analyzed characteristics such as pileus, hymenophore, and basidiospores.
Identified Similiboletinus tomentopileatus as a new genus and species within the Boletaceae family.
Phylogenetic analyses confirmed the placement of Similiboletinus within the Suillelloideae subfamily.
Morphological features include a tomentose yellow-brown pileus and unchanging context upon injury.

Abstract

Boletaceae, a family of profound ecological influence and economic value, has been the subject of prolific taxonomic research over the past decade, with new taxa continually being discovered. In this study, Similiboletinus tomentopileatus gen. et sp. nov., collected from a tropical region of China, is proposed based on integrative morphological and phylogenetic analyses. Phylogenetic analyses of a multigene dataset (LSU-rpb2-tef1-α-atp6) strongly support the position of Similiboletinus within the Suillelloideae. Morphologically, it is characterized by a tomentose and yellow–brown pileus, a subdecurrent hymenophore, unchanging context when injured, a boletoid hymenophoral trama, a cutis-type pileipellis, and broadly ellipsoid to ovoid basidiospores. The identification of Similiboletinus further underscores the striking and largely unexplored diversity of Boletaceae within tropical China.

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