Lecanora subviridis (Lecanoraceae, Lecanorales), a new corticolous lichen species from south-western Argentina

Abstract

The corticolous lichen Lecanora subviridis de la Rosa & Messuti is described from temperate forests in south-western Argentina as new to science. It differs from other species of Lecanora occurring on bark and wood by containing usnic or isousnic acid. The relationships with the other taxa are discussed.

Lecanora coppinsiarum, a new Tasmanian lichen related to Lecanora symmicta

“…This species is characterized by a poorly developed, inconspicuous thallus containing usnic acid as the main secondary compound, waxy, epruinose apothecia, 0·2–0·5 mm diam., with a persistent margin containing photobiont cells, and small broadly ellipsoid to subglobose ascospores, 6–10 × 5–7 µm (see de la Rosa et al . 2010 for full description). It was described from the twigs of Nothofagus dombeyi in Argentina.…”