Two new species of Amphisphaeria (Amphisphaeriaceae) from Northern Thailand

• Main Authors: Milan C. Samarakoon, Jian Kui Jack Liu, Kevin D. Hyde, Itthayakorn Promputtha
• Format: Journal
• Published: 2019
• Subjects: Agricultural and Biological Sciences
• Online Access: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85064181495&origin=inward; http://cmuir.cmu.ac.th/jspui/handle/6653943832/65288
• Institution: Chiang Mai University

© 2019 Magnolia Press. Amphisphaeria flava and A. thailandica sp. nov. collected from dead woody branches in northern Thailand, are described and illustrated in this study. Both taxa share ascomata with a brown outer peridium and 1-septate brown ascospores in uniseriate asci. Amphisphaeria flava is characterized by a pale yellow host surface around the ostiole, a comparatively thin peridium and multi-guttulate mature ascospores. Amphisphaeria thailandica is characterized by subglobose to oval ascospores. Maximum parsimony, maximum likelihood and Bayesian inference analyses of a combined LSU and ITS DNA sequence matrix shows that A. flava and A. thailandica are distinct from other Amphisphaeria species (with molecular data available) in family Amphisphaeriaceae. A key to accepted Amphisphaeria species is provided.