Placement of the genus Angelina within Rhytismatales and observations of Angelina rufescens

• Published in: Mycologia Vol. 106; no. 1; pp. 154 - 162
• Main Authors: Karakehian, Jason M., LoBuglio, Katherine F., Pfister, Donald H.
• Format: Journal Article
• Language: English
• Published: England Taylor & Francis 01.01.2014; Mycological Society of America
• Subjects: Ascobolus; Ascomycota; Ascomycota - classification; Ascomycota - genetics; Ascomycota - growth & development; Ascomycota - isolation & purification; Hypoderma; lectotypification; Leotiomycetes; Lewis David von Schweinitz; Lophodermium; mitochondrial SSU; Molecular Sequence Data; Nils Peter Angelin; nuclear LSU; ontogeny; Phylogeny; Rhytismataceae; Rhytismatales; Spores, Fungal - classification; Spores, Fungal - genetics; Spores, Fungal - growth & development; Spores, Fungal - isolation & purification; SYSTEMATICS; Wood - microbiology; mitochondrial SSU; Leotiomycetes; lectotypification; Lewis David von Schweinitz; Hypoderma; Lophodermium; nuclear LSU; Rhytismataceae; Nils Peter Angelin; ontogeny
• ISSN: 0027-5514; 1557-2536
• DOI: 10.3852/13-174

Angelina rufescens is placed within the core clade of Rhytismatales (Leotiomycetes, Pezizomycotina, Ascomycota) based on analysis of LSU and mtSSU rDNA. The only species in the genus, it produces distinctive ascomata that reoccur annually on wood and on the remains of its own previous fructifications, forming dense conglomerations of interlocking longitudinally elongated apothecia with gray hymenia. Known collections and references of A. rufescens indicate that it is endemic to eastern and central United States. Morphological and cultural characters are described with notes on ascomata development. No mitospores were observed in field collections or in culture. Lectotypes are designated for Hysterium rufescens and its synonym Ascobolus conglomeratus. Angelina rufescens is illustrated here for the first time in the taxonomic literature.