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Jahnulales (Dothideomycetes, Ascomycota): a new order of lignicolous freshwater ascomycetes

Published online by Cambridge University Press:  13 November 2002

Ka-Lai PANG
Affiliation:
Department of Biology and Chemistry, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon Tong, Hong Kong SAR Present address: School of Biological Sciences, University of Portsmouth, King Henry Building, King Henry I Street, Portsmouth PO1 2DY, UK.
Mohamed A. ABDEL-WAHAB
Affiliation:
Department of Botany, Faculty of Science, South Valley University, Sohag, Egypt
Somsak SIVICHAI
Affiliation:
BIOTEC, National Centre for Genetic Engineering and Biotechnology, 113 Thailand. Science Park, Paholyothin Road, Klong 1, Klong Luang, Pathumthani, 12120 Thailand
Hassan M. EL-SHAROUNEY
Affiliation:
Department of Botany, Faculty of Science, South Valley University, Sohag, Egypt
E. B. Gareth JONES
Affiliation:
BIOTEC, National Centre for Genetic Engineering and Biotechnology, 113 Thailand. Science Park, Paholyothin Road, Klong 1, Klong Luang, Pathumthani, 12120 Thailand
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Abstract

A new order is introduced (Jahnulales) to accommodate ascomycetes with stalked/sessile and dimorphic ascomata, hyphal stalk cells that are ca 40 μm wide, and ascospores that are unequally 2-celled with or without various types of appendages or sheaths. The order includes a single family, the Aliquandostipitaceae, and has affinities with the Pleosporales within the Dothideomycetes. Studies on freshwater ascomycetes in Egypt and Thailand yielded one new genus Patescospora, and Jahnula siamensiae sp. nov., and the new combination J. sunyatsenii (syn. Aliquandostipite sunyatsenii) is made based on molecular results.

Type
Research Article
Copyright
© The British Mycological Society 2002

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