Abstract
Boletellus brunoflavus sp. nov. collected from Baiyun Mountain, Guangzhou, China, is described based on 5-locus (nrITS, nrLSU, rpb1, rpb2 and tef1-α) phylogenetic analyses and morphological examination. It is characterized by small to medium size basidiomata; dry, sparse tomentose and brownish yellow pilei with reddish brown tints; a golden to brownish yellow hymenophore; relatively small basidiospores with longitudinal striae only and pale yellowish context turning greenish blue immediately when bruised.
References
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<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Chiu, W.F. (1948) The Boletes of Yunnan. Mycologia 40 (2): 199–231. https://doi.org/10.1080/00275514.1948.12017700</span></span></span>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Dentinger, B.T.M., Ammirati, J.F., Both, E.E., Desjardin, D.E., Halling, R.E., Henkel, T.W., Moreau, P.-A., Nagasawa, E., Soytong, K., Taylor, A.F., Watling, R., Moncalvo, J.-M. & McLaughlin, D.J. (2010) Molecular phylogenetics of porcini mushrooms (Boletus section Boletus). Molecular Phylogenetics and Evolution 57 (3): 1276–1292. https://doi.org/10.1016/j.ympev.2010.10.004</span></span></span>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Doyle, J.J. & Doyle, J.L. (1987) A Rapid DNA Isolation Procedure for Small Quantities of Fresh Leaf Tissue. Phytochemical Bulletin 19 (1): 11–15. </span></span></span>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Edgar, R.C. (2004) MUSCLE: multiple sequence alignment with high accuracy and high throughput. Nucleic Acids Res 32 (5): 1792–1797. https://doi.org/10.1093/nar/gkh340</span></span></span>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Farid, A., Ae, B., Ar, B., Ja, B., Kudzma, L., Franck, A. & Garey, J. (2021) Investigations in the boletes (Boletaceae) of southeastern USA: four novel species and three novel combinations. Mycosphere 12 (1): 1038–1076. http://doi.org/10.5943/mycosphere/12/1/12</span></span></span>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Halling, R.E., Fechner, N., Nuhn, M., Osmundson, T., Soytong, K., Arora, D., Binder, M. & Hibbett, D. (2015) Evolutionary relationships of Heimioporus and Boletellus (Boletales), with an emphasis on Australian taxa including new species and new combinations in Aureoboletus, Hemileccinum and Xerocomus. Australian Systematic Botany 28: 1–22. https://doi.org/10.1071/sb14049</span></span></span>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Hayata, B. (1911) Materials for a Flora of Formosa. The Journal of the College of Science, Imperial University of Tokyo 30: Art. 1. [Imperial University of Tokyo, Tokyo, Japan] https://doi.org/10.5962/bhl.title.10783</span></span></span>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Kalyaanamoorthy, S., Minh, B.Q., Wong, T.K.F., von Haeseler, A. & Jermiin, L.S. (2017) ModelFinder: fast model selection for accurate phylogenetic estimates. Nature Methods 14 (6): 587–589. https://doi.org/10.1038/nmeth.4285</span></span></span>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Kumar, S., Stecher, G., Li, M., Knyaz, C. & Tamura, K. (2018) MEGA X: Molecular Evolutionary Genetics Analysis across Computing Platforms. Mol Biol Evol 35 (6): 1547–1549. https://doi.org/10.1093/molbev/msy096</span></span></span>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Kuo, M. & Ortiz-Santana, B. (2020) Revision of leccinoid fungi, with emphasis on North American taxa, based on molecular and morphological data. Mycologia 112 (1): 197–211. https://doi.org/10.1080/00275514.2019.1685351</span></span></span>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Li, Y.C. & Yang, Z.L. (2021) The Boletes of China: Tylopilus s.l.. Science Press & Springer, XV, 418 pp. https://doi.org/10.1007/978-981-16-2986-0</span></span></span>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Magnago, A.C., Neves, M.A. & Silveira, R.M.B. (2019) Boletellus nordestinus (Boletaceae, Boletales), a new species from Northeastern Atlantic Forest, Brazil. Studies in Fungi 4 (1): 47–53. https://doi.org/10.5943/sif/4/1/8</span></span></span>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Murrill, W.A. (1909) The Boletaceae of North America: I. Mycologia 1: 4–18. https://doi.org/10.2307/3753167</span></span></span>
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