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Astrothelium Octoseptatum
''Astrothelium octoseptatum'' is a species of corticolous lichen, corticolous (bark-dwelling) lichen in the family Trypetheliaceae. Found in Brazil, it was species description, formally described as a new species in 2016 by André Aptroot and Marcela Cáceres. The type (biology), type specimen was collected by the authors in the Parque Natural Municipal de Porto Velho (Porto Velho, Rondônia), in a low-altitude rainforest. The lichen has a smooth and somewhat shiny, pale greenish-grey thallus that lacks a Prothallus#In lichens, prothallus and covers areas of up to in diameter. The ascomata are pear-shaped (''pyriform'') and typically occur in groups of two to five, usually immersed in the bark tissue. The lichen contains lichexanthone, a lichen product, substance that causes the surface of the pseudostroma to glow yellow when lit with a high-wavelength UV light. The botanical name, species epithet ''octoseptatum'' refers to the ascospores, which usually have eight septum, septa th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
André Aptroot
André Aptroot (Heemskerk, 1961) is a Dutch mycologist and lichenologist. In 1993 he did his PhD at the University of Utrecht under the supervision of Robbert Gradstein (nl). His dissertation was titled "Systematic studies on pyrenocarpous lichens and related fungi". He specializes in fungi and lichens on which he has several hundreds of publications to his name. He has worked as curator at Centraalbureau voor Schimmelcultures (now Westerdijk Institute). Aptroot is the founder of the Consultancy for Bryology and Lichenology, which is located in Soest where there is a herbarium with a collection of lichens mainly from the Netherlands and the tropics. From 2008 he has been collection manager at Pinetum Blijdenstein (nl) in Hilversum. He is a member of the International Association for Lichenology and the American Bryological and Lichenological Society. He is a visiting professor at the Federal University of Mato Grosso do Sul in Campo Grande, Brazil. Because of Aptroot's bro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |