Lichenicolous fungi from Northern Portugal, specially from Montesinho Natural Park

A total of 48 lichenicolous fungi is recorded from Montesinho Natural Park, northern Portugal. Chalara ramalinae growing on Ramalina is newly described. Trichonectria australis growing on Usnea is recorded for the first time from Europe. Opegrapha rotunda is a first record for the Iberian Peninsula. Cryptocoryneum condensatum is for the first time recorded as lichenicolous. Furthermore, we record here 59 lichen species, many of them with interesting lichenicolous fungi, and some of chorological interest to Portugal.