Notes of 15 unrecorded macrofungi in Korea Author Cho, Minseo Division of Environmental Science and Ecological Engineering, College of Life Sciences and Biotechnology, Author Kwon, Sun Lul BK 21 FOUR R & E Center for Environmental Science and Ecological Engineering, Korea University, Seoul 02841, Author Jang, Seokyoon Division of Environmental Science and Ecological Engineering, College of Life Sciences and Biotechnology, & Forest Industrial Materials Division, National Institute of Forest Science, Seoul 02455, Republic of Korea Author Yoo, Yeonjae Division of Environmental Science and Ecological Engineering, College of Life Sciences and Biotechnology, Author Lee, Sang Hyun Division of Environmental Science and Ecological Engineering, College of Life Sciences and Biotechnology, Author Kwon, Dae Young Division of Environmental Science and Ecological Engineering, College of Life Sciences and Biotechnology, Author Kim, Changmu Species Diversity Research Division, National Institute of Biological Resources, Incheon 22689, Republic of Korea Author Lim, Young Woon School of Biological Sciences and Institute of Microbiology, Seoul National University, Seoul 08826, Republic of Korea ywlim@snu.ac.kr Author Kim, Jae-Jin Division of Environmental Science and Ecological Engineering, College of Life Sciences and Biotechnology, ywlim@snu.ac.kr text Journal of Species Research 2024 13 1 67 88 journal article 10.12651/JSR.2024.13.1.067 2713-8615 13161759 Boletellus putuoensis N.K. Zeng, Yi Li, Chang Xu , Xu Zhang & J.R. Wang, Phytotaxa 554(2): 156 (2022) [MB#571000] ( Figs. 1C and 2C ) Korean name: DZǙȐƎāfflŷ Pileus convex, margin straight, even, 40-50 mm in diam. Pileus surface smooth, partially cracked, brown, margin dusky red. Pore surface yellowish brown when young, becoming dark brown when old, round to angular pores, 1-2 per mm. Stipe central, equal, 65 × 5 mm , surface smooth, concolorous with pileus. Hyphal system monomitic, generative hyphae simple septate, rarely branched, without clamp connections, thin-walled, hyaline, 3.3-8.4 μm. Basidia obovoid to pyriform, 4-spored, smooth, thin-walled, hyaline, without a clamp connection, 21.9-30.0 × 10.5-14.2 μm. Cystidia fusiform to lageniform, smooth, thin-walled, hyaline, without a clamp connection, 48.8-75.7 × 10.3-13.3 μm. Basidiospores ellipsoid to cylindrical, striate, with 5-8 ridges, thick-walled, yellowish brown to reddish brown, bearing a guttule, 10.9-14.0 × 6.3-9.6 μm [Q = 1.45-1.73]. Specimen examined. Korea , Gyeongsangbuk-do , Cheongsong-gun , Juwangsan National Park , 36°23 ʹ 43.9 ʺ N , 129° 09 ʹ 15.0 ʺ E , 348 m , mixed hardwood forest, occurring solitary on the ground near Yongchu Falls , 31 Jul 2019 , S. Jang and S. L. Kwon , KUC20190731-68 ( NIBRFG0000 506145 ) . Notes - Boletellus Murrill includes about 64 species worldwide from tropical to temperate regions ( Murrill, 1909 ; Singer, 1970 ; Snell and Dick, 1970 ; Corner, 1972 ; Watling and Li, 1999 ; Bessette et al. , 2000 ; Watling, 2001 ; Halling and Mueller, 2005 ; Horak, 2011; Zeng and Yang, 2011 ; Sato et al. , 2012 ; Bessette et al. , 2017 ; Tibpromma et al. , 2017 ; Parihar et al. , 2018 ). Among them, nine species are recorded in Korea ( Cho and Park, 1988 ; An, 1998 ). Boletellus putuoensis is characterized by small-sized brownish pileus, fusiform and lageniform cystidia, and thick-walled striate basidiospores ( Xu et al. , 2022 ). Additional observation using SEM is required to observe the surface of basidiospores clearly. The original description differs from KUC20190731-68 by a smaller pileus ( 17-48 mm ) and observance of fusiform cystidia only ( Xu et al. , 2022 ). According to the phylogenetic analysis, Bo. chrysenteroides is the most closely related to Bo. putuoensis ( Fig. 5 ). However, Bo. chrysenteroides has narrower basidiospores (12-16 × 4.6-7.5 μm) ( Smith, 1971 ). Boletellus putuoensis was previously reported from Southeastern China , Guangdong , Hainan , and Zhejiang , which have subtropical to tropical climate ( Xu et al. , 2022 ; Xue et al. , 2023 ). This study is the first report of Bo. putuoensis in the temperate region, over 30 degrees north latitude.