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.
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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. <em>Mycologia</em> 40 (2): 199–231. https://doi.org/10.1080/00275514.1948.12017700</span></span></span></p>
<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). <em>Molecular Phylogenetics and Evolution</em> 57 (3): 1276–1292. https://doi.org/10.1016/j.ympev.2010.10.004</span></span></span></p>
<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. <em>Phytochemical Bulletin</em> 19 (1): 11–15. </span></span></span></p>
<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. <em>Nucleic Acids Res</em> 32 (5): 1792–1797. https://doi.org/10.1093/nar/gkh340</span></span></span></p>
<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. <em>Mycosphere</em> 12 (1): 1038–1076. http://doi.org/10.5943/mycosphere/12/1/12</span></span></span></p>
<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 <em>Heimioporus </em>and <em>Boletellus </em>(Boletales), with an emphasis on Australian taxa including new species and new combinations in <em>Aureoboletus</em>, <em>Hemileccinum </em>and <em>Xerocomus</em>. <em>Australian Systematic Botany</em> 28: 1–22. https://doi.org/10.1071/sb14049</span></span></span></p>
<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. <em>The Journal of the College of Science, Imperial University of Tokyo</em> 30: Art. 1. [Imperial University of Tokyo, Tokyo, Japan] https://doi.org/10.5962/bhl.title.10783</span></span></span></p>
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