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Myelochroa Nothofagi
''Myelochroa'' is a genus of foliose lichens in the family Parmeliaceae. They are commonly known as axil-bristle lichens. It was created in 1987 to contain species formerly placed in genus ''Parmelina'' that had a yellow-orange medulla (lichenology), medulla due to the presence of secalonic acids. Characteristics of the genus include tightly attached thallus, thalli with narrow lobes, cilia on the axils, and a rhizine, rhizinate black lower surface. Chemical characteristics are the production of zeorin and related triterpenoids in the medulla. ''Myelochroa'' contains about 30 species, most of which corticolous lichen, grow on bark. The genus has centres of distribution in Asia and North America. Taxonomy ''Myelochroa'' was originally circumscription (taxonomy), circumscribed by Yasuhiko Asahina as a subsection of section (biology), section ''Hypotrachyna'' in genus ''Parmelia (fungus), Parmelia''. This taxon was later raised to sectional status by Hale in 1976. It was promoted to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yasuhiko Asahina
Yasuhiko Asahina (朝比奈泰彦 ''Asahina Yasuhiko''; April 16, 1881 – June 30, 1975) was a Japanese chemist and lichenologist. Early life During his childhood, Asahina developed an interest in plants. In 1902, he enrolled in the School of Pharmacy at Tokyo Imperial University, from which he graduated in 1905. Asahina stayed at the university to research the chemical principles of Chinese traditional medicine under Junichiro Shimoyama. His first paper on styracitol isolation from ''Styrax obassia'' was published in 1907. In 1909, Asahina travelled to Zurich to study phytochemistry under Richard Willstätter. He continued his research on chlorophyll until 1912, when he moved to Berlin. He spent three months in Germany working in the laboratory of Professor Emil Fischer on a styracitol experiment.Shibata, S. (2000). Yasuhiko Asahina (1880-1975) and His Studies on Lichenology and Chemistry of Lichen Metabolites. The Bryologist, 103(4), 710-719. Retrieved from http://www.jstor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |