Astrothelium clypeatum is a species of corticolous (bark-dwelling) lichen in the family Trypetheliaceae.[1] Found in Vietnam, it was formally described as a new species in 2016 by André Aptroot and Cécile Gueidan. The type specimen was collected from Cát Tiên National Park (Dong Nai Province); here it was found growing on the bark of some trees along a road. The lichen has an olive-green thallus that shows branched lines revealing the black prothallus underneath. No lichen products were detected in the species. The authors placed it in genus Astrothelium because of the "well-developed, corticate, rimose thallus", but acknowledge that it might belong to genus Pseudopyrenula. The species epithet clypeatum refers to the conical black ascomata, which have a pseudostromata resembling a clypeus (a shield-like growth).[2]
| Astrothelium clypeatum | |
|---|---|
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Fungi |
| Division: | Ascomycota |
| Class: | Dothideomycetes |
| Order: | Trypetheliales |
| Family: | Trypetheliaceae |
| Genus: | Astrothelium |
| Species: | A. clypeatum
|
| Binomial name | |
| Astrothelium clypeatum | |
References
edit- ^ Schumm, Felix; Aptroot, André (2021). Atlas of Pyrenulaceae and Trypetheliaceae. Vol. 4. Norderstedt: Books on Demand. p. 339. ISBN 978-3-7557-6336-9. OCLC 1301546031.
- ^ 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.
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