taxonID	type	description	language	source
0386306FEF3BFFD6AEF642B9FB4FF865.taxon	etymology	Etymology: — Latin “ guangdongensis ” refers to the location Guangdong Province, southern China, where the holotype was collected.	en	Zhang, Xu, Tian, Run, Tang, Li-Ping, Liang, Zhi-Qun, Zhang, Wen-Hao, Jiang, Shuai, Wang, Cheng-Kai, Zeng, Nian-Kai (2022): Morphological and phylogenetic evidence reveal three new species of Aureoboletus (Boletaceae, Boletales) from China. Phytotaxa 567 (2): 127-148, DOI: 10.11646/phytotaxa.567.2.2
0386306FEF3BFFD6AEF642B9FB4FF865.taxon	diagnosis	Diagnosis: — Differs from other species of Aureoboletus by a small basidiomata, a brownish-orange, dry pileal surface, short and wide basidiospores, and a trichoderm-type pileipellis composed of more or less inflated hyphae.	en	Zhang, Xu, Tian, Run, Tang, Li-Ping, Liang, Zhi-Qun, Zhang, Wen-Hao, Jiang, Shuai, Wang, Cheng-Kai, Zeng, Nian-Kai (2022): Morphological and phylogenetic evidence reveal three new species of Aureoboletus (Boletaceae, Boletales) from China. Phytotaxa 567 (2): 127-148, DOI: 10.11646/phytotaxa.567.2.2
0386306FEF3BFFD6AEF642B9FB4FF865.taxon	materials_examined	Holotype: — CHINA. Guangdong Province: Renhua County, Danxia National Nature Reserve, elev. 360 m, 12 June 2019, N. K. Zeng 4083 (FHMU 3797). GenBank accession number: 28 S = OK 327021, TEF 1 = OM 321040, RPB 2 = OM 280447.	en	Zhang, Xu, Tian, Run, Tang, Li-Ping, Liang, Zhi-Qun, Zhang, Wen-Hao, Jiang, Shuai, Wang, Cheng-Kai, Zeng, Nian-Kai (2022): Morphological and phylogenetic evidence reveal three new species of Aureoboletus (Boletaceae, Boletales) from China. Phytotaxa 567 (2): 127-148, DOI: 10.11646/phytotaxa.567.2.2
0386306FEF3BFFD6AEF642B9FB4FF865.taxon	description	Description: — Basidiomata small-sized. Pileus 2.4 – 4.5 cm in diam., subhemispherical when young, then convex to applanate; surface dry, subtomentose, brownish-orange (5 B 5) at first, reddish-brown (6 C 3) to reddish violet (7 C 2) when mature; context approximately 0.7 cm thick in the center of the pileus, white (1 A 3), unchanging in color when cut. Hymenophore poroid, depressed around apex of stipe; pores 0.3 – 0.5 mm in diam., angular to subround, pale yellow (1 A 3), unchanging in color when cut; tubes approximately 0.7 cm long, pale yellow (4 A 2), unchanging in color when cut. Stipe 5.5 – 6 × 0.5 – 1 cm, central, subcylindrical or subclavate; surface pale brownish-orange (4 B 3) when young, then pastel reddish violet (7 B 2), with distinct longitudinal streaks; context white (1 A 3), unchanging in color when cut. Basal mycelium white (1 A 1). Odor indistinct. Basidia 27 – 31 × 9 – 10 μm, clavate, moderately thick-walled (up to 1 μm), 4 - spored, hyaline or yellowish in KOH; sterigmata 3 – 5 μm long. Basidiospores [100 / 2 / 2] 7 – 9.5 (– 11) × (4 –) 4.5 – 6 μm, Q = (1.28 –) 1.5 – 1.78 (– 2), Qm = 1.65 ± 0.18, elongate, moderately thick-walled (up to 1 μm), smooth, yellowish brown (3 B 8) in KOH. Cheilocystidia 29 – 40 × 8 – 10 μm, fusiform or subfusiform, moderately thick-walled (up to 1 μm), yellowish-white or hyaline in KOH. Pleurocystidia 25 – 35 × 7.5 – 10 μm, abundant, fusiform or subfusiform, yellowish in KOH, moderately thickwalled (up to 1 μm). Hymenophoral trama bilateral, composed of hyphae 5 – 10 μm wide, moderately thick-walled (up to 1 μm), yellowish in KOH. Pileipellis a trichoderm 250 – 500 μm thick, made up of hyphae 4 – 14 μm wide, slightly inflated to moniliform, yellowish-white or hyaline in KOH; terminal cells 17.5 – 47 × 4 – 14 μm, cystidioid, subclavate or subcylindrical, with obtuse, sometimes acute apex. Pileal trama composed of hyphae 5 – 20 μm wide, moderately thick-walled (up to 1 μm), hyaline in KOH. Stipitipellis a hymeniderm 250 – 400 μm thick, made up of hyphae 3 – 8 μm wide, thin-walled, yellowish-white or hyaline in KOH; terminal cells 12 – 22 × 4 – 9 μm, broadly clavate, subcylindrical, or subfusiform, with obtuse apex. Stipe trama made up of parallel hyphae 4 – 10 μm broad, slightly thick-walled (up to 0.5 μm), colorless in KOH. Clamp connections not observed in any tissue.	en	Zhang, Xu, Tian, Run, Tang, Li-Ping, Liang, Zhi-Qun, Zhang, Wen-Hao, Jiang, Shuai, Wang, Cheng-Kai, Zeng, Nian-Kai (2022): Morphological and phylogenetic evidence reveal three new species of Aureoboletus (Boletaceae, Boletales) from China. Phytotaxa 567 (2): 127-148, DOI: 10.11646/phytotaxa.567.2.2
0386306FEF3BFFD6AEF642B9FB4FF865.taxon	biology_ecology	Habitat: — Solitary on the ground in forests dominated by fagaceous trees (Lithocarpus spp.).	en	Zhang, Xu, Tian, Run, Tang, Li-Ping, Liang, Zhi-Qun, Zhang, Wen-Hao, Jiang, Shuai, Wang, Cheng-Kai, Zeng, Nian-Kai (2022): Morphological and phylogenetic evidence reveal three new species of Aureoboletus (Boletaceae, Boletales) from China. Phytotaxa 567 (2): 127-148, DOI: 10.11646/phytotaxa.567.2.2
0386306FEF3BFFD6AEF642B9FB4FF865.taxon	distribution	Known distribution: — Southern and southeastern China (Guangdong and Fujian Provinces).	en	Zhang, Xu, Tian, Run, Tang, Li-Ping, Liang, Zhi-Qun, Zhang, Wen-Hao, Jiang, Shuai, Wang, Cheng-Kai, Zeng, Nian-Kai (2022): Morphological and phylogenetic evidence reveal three new species of Aureoboletus (Boletaceae, Boletales) from China. Phytotaxa 567 (2): 127-148, DOI: 10.11646/phytotaxa.567.2.2
0386306FEF3BFFD6AEF642B9FB4FF865.taxon	materials_examined	Additional specimen examined: — CHINA. Fujian Province: Zhangping County, Xinqiao Town, Chengkou Village, elev. 350 m, 28 July 2013, N. K. Zeng 1310 (FHMU 864); same location and date, N. K. Zeng 1310 - 1 (FHMU 6511).	en	Zhang, Xu, Tian, Run, Tang, Li-Ping, Liang, Zhi-Qun, Zhang, Wen-Hao, Jiang, Shuai, Wang, Cheng-Kai, Zeng, Nian-Kai (2022): Morphological and phylogenetic evidence reveal three new species of Aureoboletus (Boletaceae, Boletales) from China. Phytotaxa 567 (2): 127-148, DOI: 10.11646/phytotaxa.567.2.2
0386306FEF3BFFD6AEF642B9FB4FF865.taxon	discussion	Notes: Phylogenetically and morphologically, A. guangdongensis is closely related to A. catenarius G. Wu & Zhu L. Yang (2016: 42), A. moravicus (Vaček 1946: 36) Klofac (2010: 142), A. roxanae (Frost 1874: 104) Klofac (2010: 143), and A. velutipes Ming Zhang & T. H. Li (2019: 132) (Fig. 2). However, A. catenariu s, originally described from Yunnan Province, southwestern China, has a larger pileus (3.5 – 6 cm in diam.), narrower basidiospores (7 – 9 × 3.5 – 5 μm), and wider hyphae in pileipellis (up to 27 μm) (Wu et al. 2016); A. moravicus has a larger pileus (up to 8 cm in diam.), and longer basidiospores [8 – 11 (– 12) × 4.5 – 5.5 (– 6) μm], and it is distributed in Europe (Herink 1964; Klofac 2016); A. roxanae has a larger pileus (8 – 9 cm in diam.), longer but narrower basidiospores [9.5 – 11 (– 13) × 3.5 – 4 (– 4.5) μm], a pileipellis made up of uninflated hyphae, and it is distributed in Canada, USA, and Mexico (Frost 1874; GarcíaJiménez et al. 2019); A. velutipes, originally described from Guangdong Province, southern China, has a light yellow to pastel yellow stipe covered with fibrillose to tomentose squamules, and larger basidiospores [10 – 13 × (4 –) 5 – 6 (– 6.5) μm] (Zhang et al. 2019). In addition, A. guangdongensis is also affiliated with a Chinese undescribed species voucher GDGM 49259 (Fig. 1), and their morphological differences will be investigated in the future.	en	Zhang, Xu, Tian, Run, Tang, Li-Ping, Liang, Zhi-Qun, Zhang, Wen-Hao, Jiang, Shuai, Wang, Cheng-Kai, Zeng, Nian-Kai (2022): Morphological and phylogenetic evidence reveal three new species of Aureoboletus (Boletaceae, Boletales) from China. Phytotaxa 567 (2): 127-148, DOI: 10.11646/phytotaxa.567.2.2
0386306FEF3AFFD5AEF647D3FEA5FDC3.taxon	etymology	Etymology: — Latin “ microcarpus ” refers to the small basidiomata of the new species.	en	Zhang, Xu, Tian, Run, Tang, Li-Ping, Liang, Zhi-Qun, Zhang, Wen-Hao, Jiang, Shuai, Wang, Cheng-Kai, Zeng, Nian-Kai (2022): Morphological and phylogenetic evidence reveal three new species of Aureoboletus (Boletaceae, Boletales) from China. Phytotaxa 567 (2): 127-148, DOI: 10.11646/phytotaxa.567.2.2
0386306FEF3AFFD5AEF647D3FEA5FDC3.taxon	diagnosis	Diagnosis: — Differs from other species of Aureoboletus by a very small and glutinous basidioma, a dull reddishbrown, violet brown pileal surface, a pileal margin usually with white to subhyaline veil remnants when young, cylindrical basidiospores, and an ixotrichoderm-type pileipellis.	en	Zhang, Xu, Tian, Run, Tang, Li-Ping, Liang, Zhi-Qun, Zhang, Wen-Hao, Jiang, Shuai, Wang, Cheng-Kai, Zeng, Nian-Kai (2022): Morphological and phylogenetic evidence reveal three new species of Aureoboletus (Boletaceae, Boletales) from China. Phytotaxa 567 (2): 127-148, DOI: 10.11646/phytotaxa.567.2.2
0386306FEF3AFFD5AEF647D3FEA5FDC3.taxon	materials_examined	Holotype: — CHINA. Hainan Province: Yinggeling of Hainan Tropical Rainforest National Park, elev. 550 m, 7 July 2020, N. K. Zeng 4468 (FHMU 4688). GenBank accession number: 28 S = OK 327017, ITS = OM 200341, RPB 2 = OM 280449.	en	Zhang, Xu, Tian, Run, Tang, Li-Ping, Liang, Zhi-Qun, Zhang, Wen-Hao, Jiang, Shuai, Wang, Cheng-Kai, Zeng, Nian-Kai (2022): Morphological and phylogenetic evidence reveal three new species of Aureoboletus (Boletaceae, Boletales) from China. Phytotaxa 567 (2): 127-148, DOI: 10.11646/phytotaxa.567.2.2
0386306FEF3AFFD5AEF647D3FEA5FDC3.taxon	description	Description: — Basidiomata very small-sized. Pileus 0.4 – 1.9 cm in diam., subhemispherical when young, then broadly convex to plane; margin usually with white (1 A 1) to subhyaline veil remnants when young; surface viscid, distinctly wrinkled, brown (6 D 3) to blackish brown (6 E 3); context 0.1 – 0.2 cm thick in the center of the pileus, white (1 A 1), unchanging in color when cut. Hymenophore poroid, adnate or slightly decurrent; pores approximately 0.5 mm in diam., subround, yellowish (1 A 3), unchanging in color when cut; tubes 0.1 – 0.3 cm long, pale yellow (1 A 6), unchanging in color when cut. Stipe 1.5 – 2.2 × 0.1 – 0.3 cm, central, subcylindrical, solid; surface yellowish-white (1 A 3), usually covered with a mucilaginous layer; context white (1 A 1), unchanging in color when cut. Basal mycelium white (1 A 1). Odor indistinct. Basidia 22 – 30 × 7 – 10.5 μm, clavate, thin-walled, 4 - spored, hyaline or yellowish in KOH; sterigmata 3 – 4 μm long. Basidiospores [150 / 3 / 3] 8.5 – 12.5 (– 13) × 4 – 5.5 μm, Q = (1.87 –) 2 – 2.77 (– 3), Qm = 2.4 ± 0.26, cylindrical, smooth, moderately thick-walled (up to 1 μm), yellowish brown (3 B 8) in KOH. Cheilocystidia 24 – 36 × 8 – 13 μm, fusoidventricose, moderately thick-walled (up to 1 μm), yellowish-white (1 A 3) or hyaline in KOH. Pleurocystidia 25 – 44 × 10 – 14 μm, subfusiform or fusiform, thin-walled, yellowish-brown (3 B 8) in KOH. Hymenophoral trama bilateral, composed of hyphae 3 – 8 μm wide, moderately thick-walled (up to 1 μm), yellowish (1 A 2) in KOH. Pileipellis an ixotrichoderm 200 – 300 μm thick, embedded in a gelatinized matrix, made up of hyphae 4 – 8 μm wide, moderately thick-walled (up to 1 μm), yellowish-white (1 A 3) or hyaline in KOH; terminal cells 26 – 39 × 4.5 – 8 μm, narrowly clavate or subcylindrical, with obtuse apex. Pileal trama composed of hyphae 3 – 8 μm wide, moderately thick-walled (up to 1 μm), hyaline in KOH. Stipitipellis a hymeniderm 300 – 500 μm thick, embedded in a gelatinized matrix, made up of hyphae 4 – 5 μm wide, moderately thick-walled (up to 1 μm), yellowish-white (1 A 3) or hyaline in KOH; terminal cells 25 – 43 × 4 – 5 μm, subclavate, subcylindrical, or subfusiform, with obtuse apex. Stipe trama made up of parallel hyphae 4 – 10 μm wide, thin- to slightly thick-walled (up to 0.5 μm), hyaline in KOH. Clamp connections not observed in any tissue.	en	Zhang, Xu, Tian, Run, Tang, Li-Ping, Liang, Zhi-Qun, Zhang, Wen-Hao, Jiang, Shuai, Wang, Cheng-Kai, Zeng, Nian-Kai (2022): Morphological and phylogenetic evidence reveal three new species of Aureoboletus (Boletaceae, Boletales) from China. Phytotaxa 567 (2): 127-148, DOI: 10.11646/phytotaxa.567.2.2
0386306FEF3AFFD5AEF647D3FEA5FDC3.taxon	biology_ecology	Habitat: — Solitary on the ground in forests dominated by fagaceous trees (Lithocarpus spp.).	en	Zhang, Xu, Tian, Run, Tang, Li-Ping, Liang, Zhi-Qun, Zhang, Wen-Hao, Jiang, Shuai, Wang, Cheng-Kai, Zeng, Nian-Kai (2022): Morphological and phylogenetic evidence reveal three new species of Aureoboletus (Boletaceae, Boletales) from China. Phytotaxa 567 (2): 127-148, DOI: 10.11646/phytotaxa.567.2.2
0386306FEF3AFFD5AEF647D3FEA5FDC3.taxon	distribution	Known distribution: — Southern China (Hainan Province).	en	Zhang, Xu, Tian, Run, Tang, Li-Ping, Liang, Zhi-Qun, Zhang, Wen-Hao, Jiang, Shuai, Wang, Cheng-Kai, Zeng, Nian-Kai (2022): Morphological and phylogenetic evidence reveal three new species of Aureoboletus (Boletaceae, Boletales) from China. Phytotaxa 567 (2): 127-148, DOI: 10.11646/phytotaxa.567.2.2
0386306FEF3AFFD5AEF647D3FEA5FDC3.taxon	materials_examined	Additional specimen examined: — CHINA. Hainan Province: Yinggeling of Hainan Tropical Rainforest National Park, elev. 550 m, 3 July 2020, N. K. Zeng 4465 (FHMU 4722); same location and date, N. K. Zeng 4467 (FHMU 4695).	en	Zhang, Xu, Tian, Run, Tang, Li-Ping, Liang, Zhi-Qun, Zhang, Wen-Hao, Jiang, Shuai, Wang, Cheng-Kai, Zeng, Nian-Kai (2022): Morphological and phylogenetic evidence reveal three new species of Aureoboletus (Boletaceae, Boletales) from China. Phytotaxa 567 (2): 127-148, DOI: 10.11646/phytotaxa.567.2.2
0386306FEF3AFFD5AEF647D3FEA5FDC3.taxon	discussion	Notes: Phylogenetically and morphologically, A. microcarpus is closely related to A. glutinosus Ming Zhang & T. H. Li (2019: 121), A. marroninus T. H. Li & Ming Zhang, and A. tenuis T. H. Li & Ming Zhang (2015: 182) (Fig. 2). However, A. glutinosus, originally described from Hunan Province, central China, has a reddish-brown to ruby pileal surface usually with irregular reticulations and darker folds, and longer basidiospores [(9.5 –) 10 – 13.5 × (4 –) 4.5 – 5 μm] (Zhang et al. 2019); A. marroninus, firstly described from Guangdong Province, southern China, has a darker (violet brown or maroon) pileal surface, a context often slightly changing to blue, especially in the lower portion of the stipe when exposed, and smaller basidiospores [(8 –) 8.5 – 10 × 4 – 4.5 (– 5) μm] (Zhang et al. 2015); A. tenui s, originally described from Guangxi Province, southern China, has a larger pileus (2 – 3.5 cm in diam.), a wrinkled to shallowly reticulate pileal surface, an absence of appendiculate veil remnants, and a greyish-red to brownish-orange stipe (Zhang et al. 2014). Moreover, the phylogenetic distance is 0.167 between our new species A. microcarpus and its sister taxon A. glutinosus (Fig. 2), which falls within the range of values of 0.012 to 0.42 for the inter-specific variation of Aureoboletus species.	en	Zhang, Xu, Tian, Run, Tang, Li-Ping, Liang, Zhi-Qun, Zhang, Wen-Hao, Jiang, Shuai, Wang, Cheng-Kai, Zeng, Nian-Kai (2022): Morphological and phylogenetic evidence reveal three new species of Aureoboletus (Boletaceae, Boletales) from China. Phytotaxa 567 (2): 127-148, DOI: 10.11646/phytotaxa.567.2.2
0386306FEF38FFCAAEF64003FB32FE3B.taxon	etymology	Etymology: — Latin “ rugosus ” refers to the wrinkled pileus surface of the new species.	en	Zhang, Xu, Tian, Run, Tang, Li-Ping, Liang, Zhi-Qun, Zhang, Wen-Hao, Jiang, Shuai, Wang, Cheng-Kai, Zeng, Nian-Kai (2022): Morphological and phylogenetic evidence reveal three new species of Aureoboletus (Boletaceae, Boletales) from China. Phytotaxa 567 (2): 127-148, DOI: 10.11646/phytotaxa.567.2.2
0386306FEF38FFCAAEF64003FB32FE3B.taxon	diagnosis	Diagnosis: — Differs from other species of Aureoboletus by small basidiomata, reddish-brown, violet brown, distinctly wrinkled pileal surface, a pileal margin usually with white to subhyaline, gelatinized veil remnants when young, cylindrical basidiospores, and an intricate ixotrichoderm-type pileipellis.	en	Zhang, Xu, Tian, Run, Tang, Li-Ping, Liang, Zhi-Qun, Zhang, Wen-Hao, Jiang, Shuai, Wang, Cheng-Kai, Zeng, Nian-Kai (2022): Morphological and phylogenetic evidence reveal three new species of Aureoboletus (Boletaceae, Boletales) from China. Phytotaxa 567 (2): 127-148, DOI: 10.11646/phytotaxa.567.2.2
0386306FEF38FFCAAEF64003FB32FE3B.taxon	materials_examined	Holotype: — CHINA. Yunnan Province: Jianchuan County, Shibao Mountain Scenic Spot, elev. 2,504 m, 12 September 2019, W. H. Zhang 164 (FHMU 6509). GenBank accession number: 28 S = OK 327022, ITS = OK 327022, TEF 1 = OK 357260, RPB 2 = OM 280448.	en	Zhang, Xu, Tian, Run, Tang, Li-Ping, Liang, Zhi-Qun, Zhang, Wen-Hao, Jiang, Shuai, Wang, Cheng-Kai, Zeng, Nian-Kai (2022): Morphological and phylogenetic evidence reveal three new species of Aureoboletus (Boletaceae, Boletales) from China. Phytotaxa 567 (2): 127-148, DOI: 10.11646/phytotaxa.567.2.2
0386306FEF38FFCAAEF64003FB32FE3B.taxon	description	Description: — Basidiomata small-sized. Pileus 3.3 – 3.5 cm in diam., subhemispherical when young, then broadly convex to applanate; margin usually with white (1 A 1) to subhyaline, gelatinized veil remnants when young; surface strongly viscid or mucilaginous, brown (7 C 4) to reddish-brown (7 E 6), distinctly wrinkled; context 0.3 cm thick in the center of the pileus, white (2 A 1), unchanging in color when cut. Hymenophore poroid, slightly depressed around apex of stipe; pores 0.5 – 1 mm in diam., subround, pale yellow (4 A 2), unchanging in color when cut; tubes approximately 0.7 cm long, pale yellow (4 A 2), unchanging in color when cut. Stipe 6 – 7.5 × 0.5 – 0.7 cm, central, subcylindrical; surface yellowish brown (4 A 3), strongly viscid when young, with distinct longitudinal streaks; context white, unchanging in color when cut. Basal mycelium white. Odor indistinct. Basidia 27 – 31 × 9 – 10 μm, clavate, thin- to slightly thick-walled (up to 1 μm thick), 4 - spored, hyaline or yellowish in KOH; sterigmata 4 – 4.5 μm long. Basidiospores [150 / 3 / 3] 10 – 13 (– 14.5) × 4 – 6 μm, Q = (1.67 –) 2 – 3 (– 3.25), Qm = 2.45 ± 0.31, cylindrical, moderately thick-walled (up to 1 μm), smooth, yellowish brown in KOH. Cheilocystidia 35 – 55 × 11 – 16 μm, fusoid-ventricose or subclavate, moderately thick-walled (up to 1 μm), yellowish-white or hyaline in KOH. Pleurocystidia 32 – 55 × 9 – 16 μm, fusoid-ventricose or subclavate, thin- to slightly thick-walled (up to 1 μm), yellowish-white or hyaline in KOH. Hymenophoral trama bilateral, composed of hyphae 4 – 8 μm wide, moderately thick-walled (up to 1 μm), yellowish in KOH. Pileipellis an intricate ixotrichoderm 150 – 250 μm thick, made up of hyphae 4 – 6 μm wide, moderately thick-walled (up to 1 μm), yellowish (1 A 2) in KOH; terminal cells 27 – 65 × 5 – 5.5 μm, narrowly clavate or subcylindrical, with obtuse apex. Pileal trama composed of hyphae 2 – 12 μm wide, thin- to slightly thick-walled (up to 0.5 μm), hyaline in KOH. Stipitipellis a hymeniderm approximately 250 μm thick, embedded in a gelatinized matrix, made up of hyphae 4 – 6.5 μm wide, thin-walled, yellowish (1 A 3) or hyaline in KOH; terminal cells 12 – 22 × 4 – 9 μm, clavate, with obtuse apex. Stipe trama made up of parallel hyphae 4 – 10 μm wide, moderately thickwalled (up to 1 μm), yellowish brown (3 B 8) in KOH. Clamp connections not observed in any tissue.	en	Zhang, Xu, Tian, Run, Tang, Li-Ping, Liang, Zhi-Qun, Zhang, Wen-Hao, Jiang, Shuai, Wang, Cheng-Kai, Zeng, Nian-Kai (2022): Morphological and phylogenetic evidence reveal three new species of Aureoboletus (Boletaceae, Boletales) from China. Phytotaxa 567 (2): 127-148, DOI: 10.11646/phytotaxa.567.2.2
0386306FEF38FFCAAEF64003FB32FE3B.taxon	biology_ecology	Habitat: — Solitary or scattered on the ground in forests dominated by fagaceous trees (Quercus spp.), mixed with Pinus yunnanensis Franch.	en	Zhang, Xu, Tian, Run, Tang, Li-Ping, Liang, Zhi-Qun, Zhang, Wen-Hao, Jiang, Shuai, Wang, Cheng-Kai, Zeng, Nian-Kai (2022): Morphological and phylogenetic evidence reveal three new species of Aureoboletus (Boletaceae, Boletales) from China. Phytotaxa 567 (2): 127-148, DOI: 10.11646/phytotaxa.567.2.2
0386306FEF38FFCAAEF64003FB32FE3B.taxon	distribution	Known distribution: — Southwestern China (Yunnan Province).	en	Zhang, Xu, Tian, Run, Tang, Li-Ping, Liang, Zhi-Qun, Zhang, Wen-Hao, Jiang, Shuai, Wang, Cheng-Kai, Zeng, Nian-Kai (2022): Morphological and phylogenetic evidence reveal three new species of Aureoboletus (Boletaceae, Boletales) from China. Phytotaxa 567 (2): 127-148, DOI: 10.11646/phytotaxa.567.2.2
0386306FEF38FFCAAEF64003FB32FE3B.taxon	materials_examined	Additional specimens examined: — CHINA, Yunnan Province: Jianchuan County, Shibao Mountain Scenic Spot, elev. 2,542 m, 12 September 2019, G. L. Zhang 078 (FHMU 2766); same location and date, L. P. Tang 1679 (FHMU 6510).	en	Zhang, Xu, Tian, Run, Tang, Li-Ping, Liang, Zhi-Qun, Zhang, Wen-Hao, Jiang, Shuai, Wang, Cheng-Kai, Zeng, Nian-Kai (2022): Morphological and phylogenetic evidence reveal three new species of Aureoboletus (Boletaceae, Boletales) from China. Phytotaxa 567 (2): 127-148, DOI: 10.11646/phytotaxa.567.2.2
0386306FEF38FFCAAEF64003FB32FE3B.taxon	discussion	Notes: Phylogenetically and morphologically, A. rugosus is closely related to A. thibetanus (Fig. 2). However, A. thibetanus has a distinctly reticulate pileal surface, and outer surfaces of pleurocystidia covered with a 5 – 8 μm thick layer of a strongly refractive yellow substance (Yang et al. 2003). Moreover, the phylogenetic distance is 0.036 between our new species A. rugosus and its sister species A. thibetanus (Fig. 2), which also falls within the range of values of 0.012 to 0.42 for the inter-specific variation of Aureoboletus species. Aureoboletus rugosus is also morphologically similar to Chinese species, A. glutinosus, A. griseorufescens Ming Zhang & T. H. Li (2019: 124), A. tenuis, and Japanese species, A. viscidipes (Hongo) G. Wu & Zhu L. Yang (2016: 53). However, A. glutinosus has a smaller pileus (1 – 2 cm in diam.), and narrower basidiospores (only up to 5 μm in width) (Zhang et al. 2019); A. griseorufescens has a context more or less greyish-red beneath the pileipellis and browner at the border line adjacent to tubes, gradually changing to greyish-red to greyish-rose when cut, shorter basidiospores [(8 –) 9 – 10.5 (– 11) × (4 –) 4.5 – 5 (– 5.5) μm], and a pileipellis composed of more or less inflated hyphae (12 – 19 μm wide) (Zhang et al. 2019); A. tenuis has a yellowish pileal context, and narrower basidiospores (only up to 5 μm wide) (Zhang et al. 2014); A. viscidipes has a smaller pileus (up to 2.5 cm in diam.), a pileal surface paler in color, and apical surfaces of cystidia covered with a 2 – 3 μm thick layer of a refractive pale yellow substance (Wu et al. 2016).	en	Zhang, Xu, Tian, Run, Tang, Li-Ping, Liang, Zhi-Qun, Zhang, Wen-Hao, Jiang, Shuai, Wang, Cheng-Kai, Zeng, Nian-Kai (2022): Morphological and phylogenetic evidence reveal three new species of Aureoboletus (Boletaceae, Boletales) from China. Phytotaxa 567 (2): 127-148, DOI: 10.11646/phytotaxa.567.2.2
