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 Entoloma subtenuicystidiatum Xiao Lan He & T.H. Li , Mycological Progress 11: 921 (2012) [MB#563509] ( Figs. 1F and 2F ) Korean name: ŭƞq1fflŷďNjffi Pileus convex to plane, center depressed when mature, margin straight, even, 8-12 mm in diam. Pileus surface smooth, lightly virgate, yellowish brown, reddish brown in the center. Lamellae adnate, subdistant. Stipe central, equal, light brown, 20-25 × 0.7-1.2 mm . Hyphal system monomitic, simple septate, unbranched, with few clamp connections, thin-walled, hyaline, 3.9-7.4 μm. Basidia subclavate to cylindrical, 4-spored, rarely 2-spored, smooth, thin-walled, hyaline, without a clamp connection, some bearing guttules, 24.3-31.3 × 7.9-11.0 μm. Cheilocystidia cylindrical, smooth, thin-walled, without a clamp connection, 25.6-33.3 × 7.2-8.2 μm. Pleurocystidia absent. Basidiospores hexagonal or heptagona, smooth, thick-walled, pale yellow, bearing a guttule, 9.1-10.9 × 6.3-8.2 μm [Q = 1.33-1.44]. Fig. 6. The phylogenetic tree of Entoloma bulakhae (SFC20150903-26 and SFC20150903-31), E. pygmaeopapillatum (SFC20190822-20), and E. subtenuicystidiatum (SFC20140624-04). The tree was constructed based on ITS gene datasets of the genus Entolma . Clitopilus hirneolus was used as an outgroup. The newly generated sequence is shown in blue and bold. Bootstrap support values more than 70 are shown. Specimen examined. Korea , Daejeon , Yuseong-gu , Korea Research Institute of Bioscience and Biotechnology ( KRIBB ), 36°22 ʹ 36.0 ʺ N , 127°21 ʹ 30.9 ʺ E , 53 m , occurring scattered on a lawn, 24 Jun 2014 , Y. W. Lim , SFC2014 0624-04 ( NIBRFG0000136737 ) . Notes - SFC20140624-04 is morphologically similar to the original description ( He et al. , 2012 ), but the original description has longer cheilocystidia (40-70 × 7-10 μm) and bigger basidiospores (9.5-13 × 7.5-9 μm) than our specimen ( He et al. , 2012 ). Entoloma subtenuicystidiatum resembles E. tenuicystidiatum morphologically, but E. tenuicystidiatum has pale brown to brown pileus and larger basidiospores (10-15 × 8-10 μm) ( Noordeloos and Gates, 2009 ). Entoloma subtenuicystidiatum occurred on a lawn, which accords with the original description ( He et al. , 2012 ). However, these specimens were reported in Southern China , Jiangxi , and Fuzhou ( He et al. , 2012 ), so this study is the first report of E. subtenuicystidiatum in the region above 30 degrees north latitude.