Lichenicolous fungi of Switzerland VI: Rare and noteworthy lichenicolous fungi. Several rare and noteworthy lichenicolous fungi from Switzerland are documented photographically and a short description is given. Thirteen species are recorded for the first time in Switzerland: Arthonia subfuscicola, Arthrorhaphis aeruginosa, Bergerella atrofusca, Buelliella lecanorae, Burgoa angulosa, Cercidospora soror, Didymellopsis collematum, Endococcus protoblasteniae, Kalchbrenneriella cyanescens, Lichenotubeufia heterodermiae, Nectriopsis hirta, Pronectria pedemontana, Unguiculariopsis thallophila. Particularly noteworthy is Kalchbrenneriella cyanescens.