Astrothelium rubrostiolatum
Astrothelium rubrostiolatum is a species of corticolous (bark-dwelling) lichen in the family Trypetheliaceae. Found in Brazil, it was formally described as a new species in 2017 by Marcela Eugenia da Silva Cáceres and André Aptroot. The type specimen was collected by the authors along a trail near a field station in the Adolfo Ducke Forest Reserve (Manaus); here it was found growing on tree bark in old-growth rainforest. The lichen has a dull yellowish thallus lacking a prothallus, with spherical to pear-shaped ascomata that are either immersed in or are below the thallus surface, typically arranged in groups of 7 to 25. The ascospores number eight per ascus, are muriform (divided in regular chambers), and measure 90–125 by 25–30 μm. The species epithet refers to the red colour in the ostioles. Thin-layer chromatography revealed the presence of an anthraquinone that was presumed to be parietin.[1]
| Astrothelium rubrostiolatum | |
|---|---|
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Fungi |
| Division: | Ascomycota |
| Class: | Dothideomycetes |
| Order: | Trypetheliales |
| Family: | Trypetheliaceae |
| Genus: | Astrothelium |
| Species: | A. rubrostiolatum |
| Binomial name | |
| Astrothelium rubrostiolatum M.Cáceres & Aptroot (2017) | |
References
- da Silva Cáceres, Marcela Eugenia; Aptroot, André (2017). "Lichens from the Brazilian Amazon, with special reference to the genus Astrothelium". The Bryologist. 120 (2): 166–182. doi:10.1639/0007-2745-120.2.166. S2CID 89775760.