Architrypethelium hyalinum is a species of corticolous (bark-dwelling), crustose lichen in the family Trypetheliaceae.[1] Found in Costa Rica and Brazil, it was formally described as a new species in 2008 by lichenologist André Aptroot.[2] The type specimen was collected by Harrie Sipman from the Las Cruces Biological Station in Puntarenas. The lichen has a smooth to uneven, olive-green thallus. Its ascomata occur solitarily, have an apical ostiole, and measure 0.7–1.5 mm in diameter. Ascospores number 4 to 8 per ascus, have an oblong to ellipsoid shape with 3 septa, and measure 100–150 by 30–50 μm. These spores are among the largest of the 3-septate lichens in the Trypetheliaceae. Both the thallus and ascomata contain lichexanthone, a lichen product that causes these structures to glow yellow when lit with a long-wavelength UV light; A. hyalinum is the only species in genus Architrypethelium that contains lichexanthone.[3]
| Architrypethelium hyalinum | |
|---|---|
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Fungi |
| Division: | Ascomycota |
| Class: | Dothideomycetes |
| Order: | Trypetheliales |
| Family: | Trypetheliaceae |
| Genus: | Architrypethelium |
| Species: | A. hyalinum
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| Binomial name | |
| Architrypethelium hyalinum Aptroot (2008)
| |
References
edit- ^ "Astrothelium curvisporum Aptroot & M. Cáceres". Catalogue of Life. Species 2000: Leiden, the Netherlands. Retrieved 6 November 2022.
- ^ Aptroot, A.; Lücking, R.; Sipman, H.J.M.; Umaña, L.; Chaves, J.L. (2008). "Pyrenocarpous Lichens with Bitunicate Asci: A First Assessment of the Lichen Biodiversity Inventory in Costa Rica". Bibliotheca Lichenologica. 97. Berlin/Stuttgart: J. Cramer in der Gebrüder Borntraeger Verlagsbuchhandlung.
- ^ Aptroot, André; Lücking, Robert (2016). "A revisionary synopsis of the Trypetheliaceae (Ascomycota: Trypetheliales)". The Lichenologist. 48 (6): 763–982 [793–794]. doi:10.1017/s0024282916000487. S2CID 89119724.
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