Catenarina (Teloschistaceae, Ascomycota), a new Southern Hemisphere genus with 7-chlorocatenarin

• Published in: The Lichenologist
• Main Authors: Sochting, Ulrik, Sogaard, Majbrit Zeuthen, Elix, John A., Arup, Ulf, Elvebakk, Arve, Sancho, Leopoldo G.
• Format: Article in Journal/Newspaper
• Language: English
• Published: Cambridge University Press 2014
• Subjects: Botany; Antarctica; Argentina; Caloplaca; Chile; HPLC; Kerguelen Island; lichen; metabolites; molecular phylogeny; Antarctic; Kerguelen; The Antarctic; Antarc*; Tierra del Fuego
• Online Access: https://lup.lub.lu.se/record/4559511; https://doi.org/10.1017/S002428291300087X

A new genus, Catenarina (Teloschistaceae, Ascomycota), with three species is described from the Southern Hemisphere, supported by molecular data. All species contain the secondary metabolite 7-chlorocatenarin, previously unknown in lichens. Catenarinadesolata is a non-littoral, lichenicolous species found on volcanic and soft sedimentary rock at 190-300 m in and near steppes in southernmost Chile and on the subantarctic island, Kerguelen. Catenarina vivasiana grows on maritime rocks and on rock outcrops in lowland Nothofagus forests, but has also been found at altitudes up to c. 580 m on moss and detritus on outcrops in Tierra del Fuego. The Antarctic species Caloplaca iomma is transferred to Catenarina based on chemical data; it grows on rocks near the coast in maritime Antarctica.