Astrothelium valsoides

Astrothelium valsoides is a species of 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 olive-green thallus lacking a prothallus, with spherical to pear-shaped ascomata that are immersed in the thallus surface (up to 2 mm deep), and typically arranged in groups of 3 to 15. The ascospores number eight per ascus, are hyaline, usually have 13 to 15 septa, measure 69–80 by 15–17 μm, and have a gelatinous sheath. The species epithet refers to the groups of ascomata that are arranged in a way similar to those in genus Valsa.[1]

Astrothelium valsoides
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Fungi
Division: Ascomycota
Class: Dothideomycetes
Order: Trypetheliales
Family: Trypetheliaceae
Genus: Astrothelium
Species:
A. valsoides
Binomial name
Astrothelium valsoides
M.Cáceres & Aptroot (2017)

References

  1. 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.


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