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 Macrolepiota subcitrophylla Z.W. Ge , Mycologia 53: 286 (2011) [MB#561826] ( Figs. 1J and 2J ) Korean name: ƚflșḡẗẍfflŷ Pileus ovoid to hemispherical when young, becoming convex to planate when mature, 12 cm in diam. Pileus surface white, covered with brownish yellow to light brown colored scales, scattered. Lamellae free, crowded, yellow, up to 1 cm . Stipe white, 14.0 × 1.5 cm , with white annulus. Hyphal system monomitic, generative hyphae septate with clamp connections, moderately branched, 2.1-5.5 μm in diam. Basidia clavate, 4-spored, smooth, hyaline, thin-walled, with a basal clamp connection, 25.3- 35.2 × 9.3-11.4 μm. Cheilocystidia narrowly clavate, fusiform, smooth, thin-walled, hyaline, 24.0-50.2 × 5.8- 9.5 μm. Pleurocystidia absent. Basidiospores ellipsoid, thick-walled, smooth, hyaline, 8.5-13.0 × 5.9-8.4 μm [Q = 1.44-1.55]. Specimen examined. Korea , Jeollabuk-do , Gochang-gun , Mt. Seonwoon , Seonwoonsa Temple , 35°29 ʹ 51.4 ʺ N , 126°34 ʹ 51.1 ʺ E , 33 m , mixed hardwood forest, occurring solitary on the ground covered with leaf litters, 25 Aug 2022 , M. Cho , KUC20220825-04 ( NIBRFG0000514 544 ) . Notes - Macrolepiota Singer has a big pileus with scales on surface, and 40 species have been reported worldwide ( Ge et al. , 2010 ; Ge et al. , 2012 ; Lebel and Syme, 2012 ; Otieno, 2018 ; Perez et al. , 2018 ; Cho et al. , 2019a ). In Korea , four species were described previously ( Cho et al. , 2019a ). Macrolepiota subcitrophylla is characterized by yellowish lamellae, narrowly clavate cheilocystidia, and ellipsoid basidiospores. Macrolepiota subcitrophylla has relatively small-sized basidiospores compared to other Macrolepiota species ( Ge et al. , 2012 ). The morphological characteristics of KUC20220825-04 are similar to the original description, but our specimen has longer cheilocystidia than the original description, 18-38 × 7-15 μm ( Ge et al. , 2012 ). Macrolepiota subcitrophylla is similar to Ma. dolichaula by having white pileus with brownish scales. However, Ma. dolichaula was only discovered in Southern regions such as Sri Lanka and Southern China , and it has larger basidiospores, 12.5-16.0 × 8.0-10.5 μm ( Ge et al. , 2010 ).