New species and new records of American lichenicolous fungi

DIEDERICH, P. 2003. New species and new records of American lichenicolous fungi. - Herzogia 16: 41-90. A total of 153 species of lichenicolous fungi are reported from America. Five species are described as new: Abrothallus pezizicola (on Cladonia peziziformis, USA), Lichenodiplis dendrographae (on Dendrographa, USA), Muellerella lecanactidis (on Lecanactis, USA), Stigmidium pseudopeltideae (on Peltigera, Europe and USA) and Tremella lethariae (on Letharia vulpina, Canada and USA). Six new combinations are proposed: Carbonea aggregantula (= Lecidea aggregantula), Lichenodiplis fallaciosa (= Laeviomyces fallaciosus), L. lecanoricola (= Laeviomyces lecanoricola), L. opegraphae (= Laeviomyces opegraphae), L. pertusariicola (= Spilomium pertusariicola, Laeviomyces pertusariicola) and Phacopsis fusca (= Phacopsis oxyspora var. fusca). The genus Laeviomyces is considered to be a synonym of Lichenodiplis, and a key to all known species of Lichenodiplis and Minutoexcipula is given. The genus Xenonectriella is regarded as monotypic, and all species except the type are provisionally kept in Pronectria. A study of the apothecial pigments does not support the distinction of Nesolechia and Phacopsis. The following 29 species are new for America: Abrothallus suecicus, Arthonia farinacea, Arthophacopsis parmeliarum, Carbonea supersparsa, Coniambigua phaeographidis, Diplolaeviopsis ranula, Endococcus nanellus, Epaphroconidia hawksworthii, Globosphaeria jamesii, Hobsoniopsis santessonii, Lichenopuccinia poeltii, Melaspilea canariensis, Minutoexcipula mariana, Perigrapha superveniens, Pezizella epithallina, Phacopsis cephalodioides, Polycoccum minutulum, Pseudoseptoria usneae, Rhymbocarpus cruciatus, Sphaerellothecium parmeliae, Stigmidium mycobilimbiae, Taeniolella delicata, T. phaeophysciae, T. serusiauxii, Tremella papuana, T. phaeophysciae, Unguiculariopsis lettauii, U. thallophila and Vouauxiella verrucosa. New for North America: Endococcus apiciicola, Lichenochora galligena, Lichenoconium cargillianum, Opegrapha melanospila and Tremella leptogii. New for Central America: Cystobasidium usneicola, Endococcus apiciicola, Intralichen christiansenii, Lichenodiplis lecanoricola, Lichenostigma cosmopolites, L. maureri, Opegrapha melanospila, Syzygospora bachmannii, Tremella leptogii and Tremella parmeliarum. New for South America: Buelliella minimula, B. trypethelii, Cystobasidium usneicola, Epicladonia sandstedei, Lichenopeltella heterodermiicola and Lichenosticta alcicornaria. New for the UK: Carbonea aggregantula. New for Australia: Opegrapha melanospila. Zusammenfassung: DIEDERICH, P. 2003. Neue Arten und neue Funde von amerikanischen lichenicolen Pilzen. - Herzogia 16: 41-90. Insgesamt werden 153 Arten von lichenicolen Pilzen aus Amerika gemeldet. Funf Arten werden neu beschrieben: Abrothallus pezizicola (auf Cladonia peziziformis, USA), Lichenodiplis dendrographae (auf Dendrographa, USA), Muellerella lecanactidis (auf Lecanactis, USA), Stigmidium pseudopeltideae (auf Peltigera, Europa und USA) und Tremella lethariae (auf Letharia vulpina, Kanada und USA). Sechs Neukombinationen werden vorgeschlagen: Carbonea aggregantula (= Lecidea aggregantula), Lichenodiplis fallaciosa (= Laeviomyces fallaciosus), L. lecanoricola (= Laeviomyces lecanoricola), L. opegraphae (= Laeviomyces opegraphae), L. pertusariicola (= Spilomium pertusariicola, Laeviomyces pertusariicola) und Phacopsis fusca (= Phacopsis oxyspora var. fusca). Die Gattung Laeviomyces wird als Synonym von Lichenodiplis betrachtet, und ein Schlussel fur alle Arten von Lichenodiplis und Minutoexcipula wird gegeben. Die Gattung Xenonectriella wird als monotypisch betrachtet, und alle Arten auser dem Typus werden provisorisch in Pronectria behalten. Die Apothezien-Pigmente sprechen nicht fur eine Trennung von Nesolechia und Phacopsis. Folgende 29 Arten sind neu fur Amerika: Abrothallus suecicus, Arthonia farinacea, Arthophacopsis parmeliarum, Carbonea supersparsa, Coniambigua phaeographidis, Diplolaeviopsis ranula, Endococcus nanellus, Epaphroconidia hawksworthii, Globosphaeria jamesii, Hobsoniopsis santessonii, Lichenopuccinia poeltii, Melaspilea canariensis, Minutoexcipula mariana, Perigrapha superveniens, Pezizella epithallina, Phacopsis cephalodioides, Polycoccum minutulum, Pseudoseptoria usneae, Rhymbocarpus cruciatus, Sphaerellothecium parmeliae, Stigmidium mycobilimbiae, Taeniolella delicata, T. phaeophysciae, T. serusiauxii, Tremella papuana, T. phaeophysciae, Unguiculariopsis lettauii, U. thallophila und Vouauxiella verrucosa. Neu fur Nordamerika: Endococcus apiciicola, Lichenochora galligena, Lichenoconium cargillianum, Opegrapha