Abstract
AbstractThe relationship ofAspicilia uxoriswithinMegasporaceaeis assessed within a phylogenetic context. ‘Aspicilia’uxorisand other related species are recovered as sister to the genusLobothallias. str. and described here as a new genus.Teuvoa(Ascomycota,Megasporaceae) is erected based on nuclear ITS and LSU sequence data and morphological characters. In addition toTeuvoa uxoris, a second species,T. junipericola,is added to the new genus based on material collected from North America.Teuvoa junipericola, T. uxorisandT. tibeticaform a group with 8-spored asci, absence of extrolites, rather short-sized conidia and ascospores, lack of a subhypothecial algal layer, and different substratum preferences (on organic substratum) with a sister relationship to genusLobothallias. lat. (AspiciliasubgenusPachyothalliaClauzade & C. Roux). Based on spore measurements of the holotypes,Lecanora ferganensisTomin from central Asia (Kyrgyzstan, Tajikistan and Uzbekistan),Lecanora atrodiscataGintovt, from Tajikistan andLecanora takyroidesDzhur. from Turkmenistan are new synonyms toT. uxoris. A lectotype forLecanora ferganensisis designated, expanding the known distribution ofT. uxorisfrom Algeria, Morocco and Spain, into Central Asia.
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