A Taxonomic Study of the Genus Myelochroa in South Korea

Abstract

Myelochroa (Asahina) Elix & Hale is a common foliose lichen genus found on the Korean Peninsula. Since it was first recorded nearly two decades ago, no detailed taxonomic or revisionary study of the genus has been conducted. Thus, the current study was conducted to carry out a detailed taxonomic and revisionary study of Myelochroa in South Korea. This study was based on specimens deposited in the Korean Lichen Research Institute (KoLRI). Detailed taxonomic studies and a literature review confirmed the presence of twelve species of Myelochroa from S. Korea, including one new record, Myelochroa xantholepis (Mont. & Bosch) Elix & Hale. Descriptions of each species with their morphological, anatomical and chemical characters together with a key to all known Myelochroa species are presented.

Revision of the lichen genus Myelochroa (Ascomycotina: Parmeliaceae) in Korea

“…Recently it was reported from India and Sri Lanka (Jayalal et al, 2012). It is apparently very common throughout the lowlands of the Korean peninsula.…”

“…In Korea, M. entotheiochroa has been reported as Parmelia entotheiochroa (Asahina, 1951;1952;Kim, 1965;1980;1981;Park, 1976;Cho and Lee, 1980;Lee, 1987;Ri, 1988;Huneck et al, 1989), as Parmelina entotheiochroa (Hale, 1976), as M. entotheiochroa (Park, 1990;Moon, 1997;Kashiwadani et al, 2002;Hur et al, 2004;Jayalal et al, 2012) and as M. rhytidodes (Park, 1990). One specimen reported as M. xantholepis by Jayalal et al (2012) is identified as M. entotheiochroa.…”

“…In Korea, M. aurulenta has been reported as Parmelia aurulenta (Park, 1979;Lee, 1987;Ri and Hyun, 1988;Ri, 1988;2000), Parmelina aurulenta (Hale, 1976), M. coreana (Park, 1990) and M. aurulenta (Park, 1990;Moon, 1997;1999;Kashiwadani et al, 2002;Hur et al, 2004;Jayalal et al, 2012).…”

“…In Korea, M. galbina has been reported as Parmelia galbina (Lee, 1987) or M. galbina (Park, 1990;Moon, 1999;Kashiwadani et al, 2002;Jayalal et al, 2012).…”

“…Pukhan, Seoul (Moon, 1998) and Mt. Backwoon (Jayalal et al, 2012 For other synonyms, Kurokawa and Arakawa (1997) and Hale (1976) under Parmelina irrugans and P. subaurulenta.…”