Didymocyrtis pertusariae: A new species from Central Himalaya, India and a worldwide key to all recognized Didymocyrtis (Phaeosphaeriaceae; Pleosporales) species

From the alpine region of India, a hitherto undocumented lichenicolous species of Didymocyrtis colonizing the thallus and soredia of Pertusaria species thriving on rocky substrates is meticulously described as a novel taxon (D. pertusariae), from the Indian subcontinent, and is compared with other lichenicolous Didymocyrtis species. A key to all known Didymocyrtis species known so far is also provided.