Astrothelium inspersogalbineum is a species of corticolous (bark-dwelling), crustose lichen in the family Trypetheliaceae.[1] Found in Singapore, it was formally described as a new species in 2016 by lichenologists André Aptroot and Gothamie Weerakoon. The type specimen was collected by the second author in a rainforest, where it was found growing on smooth bark. The lichen has a smooth and somewhat shiny, pale greenish-grey thallus with a cortex and a thin (0.2 mm wide) black prothallus line. It covers areas of up to 3 cm (1.2 in) in diameter, and does not induce gall formation in its host plant. A yellow to orange anthraquinone was the only lichen product detected in the collected specimens using thin-layer chromatography. A. inspersogalbineum also contains the compound lichexanthone, which causes the thallus to fluoresce yellow when lit with a long-wavelength UV light.[2] The main characteristics of the lichen distinguishing it from others in Astrothelium are its inspersed hamathecium; its ascospores, with dimensions of 20–25 by 9–11 μm; and the grouping of its ascomata, which can fuse together to become irregularly confluent.[3]
| Astrothelium inspersogalbineum | |
|---|---|
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Fungi |
| Division: | Ascomycota |
| Class: | Dothideomycetes |
| Order: | Trypetheliales |
| Family: | Trypetheliaceae |
| Genus: | Astrothelium |
| Species: | A. inspersogalbineum
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| Binomial name | |
| Astrothelium inspersogalbineum | |
References
edit- ^ "Astrothelium inspersogalbineum Aptroot". Catalogue of Life. Species 2000: Leiden, the Netherlands. Retrieved 30 October 2022.
- ^ Aptroot, André; Ertz, Damien; Etayo Salazar, Javier Angel; Gueidan, Cécile; Mercado Diaz, Joel Alejandro; Schumm, Felix; Weerakoon, Gothamie (2016). "Forty-six new species of Trypetheliaceae from the tropics". The Lichenologist. 48 (6): 609–638. doi:10.1017/s002428291600013x. S2CID 89128070.
- ^ Aptroot, André; Lücking, Robert (2016). "A revisionary synopsis of the Trypetheliaceae (Ascomycota: Trypetheliales)". The Lichenologist. 48 (6): 763–982. doi:10.1017/s0024282916000487. S2CID 89119724.
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