#astrothelium_clypeatum
Astrothelium clypeatum
Species of lichen
Astrothelium clypeatum is a species of corticolous (bark-dwelling) lichen in the family Trypetheliaceae. 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 ; 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.
Mon 30th
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