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Psiloparmelia Salazinica
''Psiloparmelia salazinica'' is a species of foliose lichen in the family Parmeliaceae. It is found in South America. Taxonomy The lichen was described as a new species in 1992 by lichenologists John Elix and Tom Nash. The type specimen was collected by Nash from the east slope of the (Jujuy Province, Argentina) at an elevation of . The species has also been recorded from Chile. The specific epithet refers to the presence of salazinic acid, a secondary compound that helps to distinguish it from a similar species, ''Psiloparmelia distincta''. Description The yellowish-green thallus of ''Psiloparmelia salazinica'' reaches diameters of , comprising somewhat linear, irregularly branched, contiguously placed lobes measuring 0.8–2.0 mm wide. The lobes are dull, becoming pruinose near the tips. The apothecia measure in diameter; the ascospores are roughly spherical to elliptical in shape, measuring 4.5–5.5 by 7–9 μm. Pycnidia are common in this lichen; they are i ... [...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] |
Pycnidia
A pycnidium (plural pycnidia) is an asexual fruiting body produced by mitosporic fungi, for instance in the order Sphaeropsidales ( Deuteromycota, Coelomycetes) or order Pleosporales (Ascomycota, Dothideomycetes). It is often spherical or inversely pearshaped ( obpyriform) and its internal cavity is lined with conidiophores. When ripe, an opening generally appears at the top, through which the pycnidiospore {{Short pages monitor [Baidu] |
Lichens Of Chile
A lichen ( , ) is a composite organism that arises from algae or cyanobacteria living among filaments of multiple fungi species in a mutualistic relationship.Introduction to Lichens – An Alliance between Kingdoms . University of California Museum of Paleontology. Lichens have properties different from those of their component organisms. They come in many colors, sizes, and forms and are sometimes plant-like, but are not s. They may have tiny, leafless branches (); flat leaf-like structures ( [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
