Caloboletus luolongensis sp. nov. and supplementary notes on Chenrenyua longispora (Boletaceae) from Guizhou Province, China
4 affiliations
- 1College of Agriculture, Guizhou University, Guiyang 550025, China College of Agriculture, Guizhou University Guiyang China https://ror.org/02wmsc916
- 2Institute of Vegetable Industry Technology Research, Guizhou University, Guiyang 550025, China Institute of Vegetable Industry Technology Research, Guizhou University Guiyang China https://ror.org/02wmsc916
- 3Guizhou Modern Seed Industry Group Co., Ltd., Guiyang 550000, China Guizhou Modern Seed Industry Group Co., Ltd. Guiyang China
- 4The Engineering Research Center of Southwest Bio-Pharmaceutical Resources, Ministry of Education, Guizhou University, Guiyang 550025, China The Engineering Research Center of Southwest Bio-Pharmaceutical Resources, Ministry of Education, Guizhou University Guiyang China https://ror.org/02wmsc916
Abstract
Caloboletus luolongensissp. nov. is described from Guizhou Province, southwestern China, based on morphological characters and multilocus phylogenetic analyses. It is characterized by a rugose pileus with a slightly incurved margin, a longitudinally reticulate stipe that is rose-red over its middle and lower parts, and a context that bruises blue when injured. Supplementary notes on the known bolete Chenrenyua longispora are also provided based on newly collected materials from Guizhou. Phylogenetic reconstructions were performed on a combined dataset of nrLSU, nrITS, TEF1-α, and RPB2 sequences. The new Caloboletus species is morphologically distinct and forms a well-supported, independent phylogenetic lineage, clearly separated from all previously described congeners. The Guizhou population of Chenrenyua longispora shows intraspecific morphological differences compared with the original protologue, and molecular data confirm its conspecificity. This study enriches the diversity of Caloboletus and extends the known geographical distribution and range of morphological variation of C. longispora. These findings further demonstrate that the species diversity of Boletaceae in southwestern China remains underestimated and highlight the importance of integrative taxonomic studies combining morphology and multilocus phylogenetic evidence.
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BibTeX
@article{mo2026caloboletus,
title = {{Caloboletus luolongensis sp. nov. and supplementary notes on Chenrenyua longispora (Boletaceae) from Guizhou Province, China}},
author = {Xing Mo and Zhuo-Qiong Qi and Zhi-Qi Zhang and Rong Dai and Ya-Dong Li and Yun Pei and Jing-Wei Li and Ting-Chi Wen and Wan-Ping Zhang and Nian-Kai Zeng and Xiu-Hong Xu},
journal = {MycoKeys},
year = {2026},
month = oct,
doi = {10.3897/mycokeys.142.196913},
url = {https://doi.org/10.3897/mycokeys.142.196913},
note = {CC BY 4.0},
}
RIS
TY - JOUR
TI - Caloboletus luolongensis sp. nov. and supplementary notes on Chenrenyua longispora (Boletaceae) from Guizhou Province, China
AU - Xing Mo
AU - Zhuo-Qiong Qi
AU - Zhi-Qi Zhang
AU - Rong Dai
AU - Ya-Dong Li
AU - Yun Pei
AU - Jing-Wei Li
AU - Ting-Chi Wen
AU - Wan-Ping Zhang
AU - Nian-Kai Zeng
AU - Xiu-Hong Xu
PY - 2026
DA - 2026/10/26
JO - MycoKeys
DO - 10.3897/mycokeys.142.196913
UR - https://doi.org/10.3897/mycokeys.142.196913
AB - Caloboletus luolongensissp. nov. is described from Guizhou Province, southwestern China, based on morphological characters and multilocus phylogenetic analyses. It is characterized by a rugose pileus with a slightly incurved margin, a longitudinally reticulate stipe that is rose-red over its middle and lower parts, and a context that bruises blue when injured. Supplementary notes on the known bolete Chenrenyua longispora are also provided based on newly collected materials from Guizhou. Phylogenetic reconstructions were performed on a combined dataset of nrLSU, nrITS, TEF1-α, and RPB2 sequences. The new Caloboletus species is morphologically distinct and forms a well-supported, independent phylogenetic lineage, clearly separated from all previously described congeners. The Guizhou population of Chenrenyua longispora shows intraspecific morphological differences compared with the original protologue, and molecular data confirm its conspecificity. This study enriches the diversity of Caloboletus and extends the known geographical distribution and range of morphological variation of C. longispora. These findings further demonstrate that the species diversity of Boletaceae in southwestern China remains underestimated and highlight the importance of integrative taxonomic studies combining morphology and multilocus phylogenetic evidence.
SN - 1314-4057
SN - 1314-4049
ER -