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Astrothelium Palaeoexostemmatis
''Astrothelium palaeoexostemmatis'' is a species of corticolous lichen, corticolous (bark-dwelling) lichen in the family Trypetheliaceae. Found in northern Thailand, it was species description, formally described as a new species in 2019 by lichenologists André Aptroot and Harrie Sipman. The type (biology), type specimen was collected near the Bhubing Palace (Doi Suthep, Chiang Mai) at an altitude of ; here, it was found in an oak/chestnut forest. The lichen has a smooth and shiny, ochraceous-brown thallus that covers areas up to in diameter. It has roughly spherical ascomata, measuring 0.4–0.6 mm in diameter; they are covered by the thallus with only a black ostiole (pore) visible. The ascospores are hyaline and muriform (i.e., divided into multiple chambers by vertical and transverse septum, septa) and measure 85–100 by 20–24 micrometre, μm. The botanical name, specific epithet ''palaeoexostemmatis'' refers to both its Palaeotropical distribution and its resem ... [...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] |