Menegazzia (Parmeliaceae: Ascomycota) and an associated lichenicolous fungus, Abrothallus parmeliarum, from Patagonia, Argentina

Abstract

Menegazzia caliginosa P.James & D.J.Galloway, M. kantvilasii P.James and M. subbullata P.James & Kantvilas are reported for the first time from outside Australasia, and M. dispora (Nyl.) R.Sant. is noted here as a first record for Argentina. We also report the discovery of fertile specimens of M. kantvilasii, with the morphological and anatomical features of its apothecia described. A comparison of the characters of the species of Menegazzia in Argentina is presented. The lichenicolous fungus, Abrothallus parmeliarum (Sommerf.) Nyl., is reported for the first time on specimens of Menegazzia and is also new to the lichen mycobiota of Argentina.