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Xanthoparmelia Nomosa
''Xanthoparmelia nomosa'' is a species of saxicolous lichen, saxicolous (rock-dwelling), foliose lichen in the family Parmeliaceae. It is found in Tasmania, Australia. Taxonomy The lichen was species description, formally described by lichenologist John Alan Elix and Gintaras Kantvilas in 2009. The botanical name, species epithet, derived from the Greek (meaning "pasture"), refers to the lichen's habitat. Description Distinguishing features of ''Xanthoparmelia nomosa'' include its narrow, more or less straight with a black lower surface, the occurrence of both isidia and on the thallus surface, and the orange pigmentation of the lower medulla (lichenology), medulla. It lacks apothecia and pycnidia. Its thallus grow 3–5 cm wide and is yellowish-green, although it darkens with age. The isidia are initial more or less spherical, later becoming cylindrical and then coralloid with blackened tips, measuring 0.5–1.0 mm high and 0.1–0.15 mm wide. Usnic acid, nor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John Alan Elix
John Alan (Jack) Elix (born 1941) emeritus professor in chemistry at the Australian National University, is an organic chemist who has contributed in many fields: lichenology, lichen chemotaxonomy, plant physiology and biodiversity and natural product chemistry. He has authored 2282 species names, and 67 genera in the field of mycology. Education His first degree, B.Sc., and his Ph.D were both in organic chemistry from the University of Adelaide. This was followed by post-doctoral years at the University of Cambridge and then a D.Sc. in natural products chemistry from the Australian National University. Career Elix spent a post doctoral year in 1966 at Cambridge, returning to Australia in 1967 to a lectureship in chemistry at the ANU. He retired as professor of chemistry in 2002, becoming professor emeritus. By 1975 he had already published several papers on the organic chemistry of lichens, and ultimately leading to work on the evolution, taxonomy and phylogeny of liche ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |