title: New Record of Lecanora muralis (Lichenized Fungus) in South Korea.
abstract: Lecanora muralis was found on the rock along coastal line during the field trip in Jeju island in 2006. Thallus crustose, placodioid, closely adnate, forming orbicular patches; upper surface grayish green, glossy; central lobes areolate, marginal parts plane, edges thin pruinose; lower surface ecorticate; apothecia sessile, lecanorine type, exciple dense and intact when young, and disc plane, but when mature, exciple laciniate, disc protrudent, yellowish brown to orange, 0.5~1.5 mm in diameter; ascospores ellipsoid, simple, colorless, 12.5~15.0 × 5.0~7.5 µm. Usnic acid and zeorin contained in thallus. This is the first record of this species in South Korea.
authors.affiliation: Key Laboratory of Systematic Mycology & Lichenology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100080, People's Republic of China. ; Korean Lichen Research Institute, Sunchon National University, Sunchon 540-742, Republic of Korea.
authors.forename: Xin Li
authors.initials: XL
authors.lastname: Wei
authors.forename: Keon Seon
authors.initials: KS
authors.lastname: Han
authors.forename: You Mi
authors.initials: YM
authors.lastname: Lee
authors.forename: Young Jin
authors.initials: YJ
authors.lastname: Koh
authors.forename: Jae-Seoun
authors.initials: JS
authors.lastname: Hur
keywords: Crustose lichen; Korea; Lichen-forming fungi; New record; Usnic acid