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Lichenology is the branch of mycology that studies the lichens, symbiotic organisms made up of an intimate symbiotic association of a microscopic alga with a filamentous fungus.
Xanthoria parietina is a foliose lichen in the family Teloschistaceae. It has wide distribution, and many common names such as common orange lichen, yellow scale, maritime sunburst lichen and shore lichen. It can be found near the shore on rocks or walls, and also on inland rocks, walls, or tree bark. It was chosen as a model organism for genomic sequencing by the US Department of Energy Joint Genome Institute (JGI).
Ethnolichenology is the study of the relationship between lichens and people. Lichens have and are being used for many different purposes by human cultures across the world. The most common human use of lichens is for dye, but they have also been used for medicine, food and other purposes.
Irwin M. Brodo is an emeritus scientist at the Canadian Museum of Nature, in Ottawa, Ontario, Canada. He is an authority on the identification and biology of lichens. Irwin Brodo was honored in 1994 with an Acharius Medal presented to him by the International Association for Lichenology.
Trebouxia is a unicellular green alga. It is a photosynthetic organism that can exist in almost all habitats found in polar, tropical, and temperate regions. It can either exist in a symbiotic relationship with fungi in the form of lichen or it can survive independently as a free-living organism alone or in colonies. Trebouxia is the most common photobiont in extant lichens. It is a primary producer of marine, freshwater and terrestrial ecosystems. It uses carotenoids and chlorophyll a and b to harvest energy from the sun and provide nutrients to various animals and insects.
Steven B. Selva is Professor Emeritus of Biology and Environmental Studies at the University of Maine at Fort Kent, a world-renowned lichenologist, and curator of UMFK's lichen herbarium. Selva is an expert on stubble lichens of the order Caliciales, called so because their millimeter-high stalks resemble beard stubble.
Xanthoria elegans, commonly known as the elegant sunburst lichen, is a lichenized species of fungus in the genus Xanthoria, family Teloschistaceae. Recognized by its bright orange or red pigmentation, this species grows on rocks, often near bird or rodent perches. It has a circumpolar and alpine distribution. It was one of the first lichens to be used for the rock-face dating method known as lichenometry.
David Leslie Hawksworth is a British mycologist and lichenologist currently with a professorship in the Universidad Complutense de Madrid in Madrid, Spain and also a Scientific Associate of The Natural History Museum in London. In 2002, he was honoured with an Acharius Medal by the International Association for Lichenology. He married Patricia Wiltshire, a leading forensic ecologist and palynologist in 2009. As of 2022, he is the Editor-in-Chief of the journals IMA Fungus and Biodiversity and Conservation.
Skyttea is a genus of lichenicolous (lichen-dwelling) fungi in the family Cordieritidaceae. The genus was circumscribed in 1981 by lichenologists Martha Allen Sherwood, David L. Hawksworth, and Brian J. Coppins, with Skyttea nitschkei assigned as the type species.
Raffaele Ciferri was an Italian botanist, agriculturalist and mycologist.
Crustose lichens are lichens that form a crust which strongly adheres to the substrate, making separation from the substrate impossible without destruction. The basic structure of crustose lichens consists of a cortex layer, an algal layer, and a medulla. The upper cortex layer is differentiated and is usually pigmented. The algal layer lies beneath the cortex. The medulla fastens the lichen to the substrate and is made up of fungal hyphae. The surface of crustose lichens is characterized by branching cracks that periodically close in response to climatic variations such as alternate wetting and drying regimes.
Dr William Lauder Lindsay FRSE FLS LRCS was a Scottish physician and botanist. As a physician he largely worked in the field of mental health. As a botanist he specialised in lichens.
Margalith Galun was an Israeli lichenologist. She was a member of the Israel Academy of Sciences and Humanities and established the Israeli collection of lichens at Tel Aviv University. Founder of the academic journal Symbiosis, she served as its editor-in-chief between 1985 and 2006. In 1994, she was awarded the Acharius Medal and in 1996 won the Meitner-Humboldt Prize, for her contributions to the field. The International Association for Lichenology grants an award which bears her name to honor scholarship at their quadrennial symposium.
Gunnar Bror Fritiof Degelius was a Swedish lichenologist. Between the publications of his first and final scientific papers, Degelius had a 70-year-long research career. While he was best known for his expertise on the lichen genus Collema, he also wrote important papers on lichen biology and ecology, floristic studies of the Nordic countries and various other areas around the world, and lichen succession. Degelius described 124 new taxa, and published about 130 scientific papers. In 1992 he was one of the first to be awarded the Acharius Medal for his lifetime contributions to lichenology. Fifteen species and three genera have been named in honour of Degelius.
Rosmarie Honegger is a Swiss lichenologist and Emeritus Professor at the University of Zurich.
Cordieritidaceae is a family of fungi in the order Cyttariales. Species in this family are saprobes or lichenicolous.
Japewiella dollypartoniana is a species of crustose lichen in the family Lecanoraceae. It is widely distributed in the Appalachian Mountains of eastern North America, and has also been reported from Ontario, Canada. The lichen grows on tree branches and sapling and shrub stems at middle to high elevations.
The British Lichen Society (BLS) was founded in 1958 with the objective of promoting the study and conservation of lichen. Although the society was founded in London, UK, it is also of relevance to lichens worldwide. It has been a registered charity since 1964.
Mark Richard David Seaward is a British ecologist and lichenologist. He was awarded the Acharius Medal in 2006 for lifetime contributions to lichenology.
References
- ↑ "Past Recipients of the Lawson Medal". Canadian Botanical Association/L'Association Botanique du Canada.
