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The genus Thecotheus (Pezizales) in Australia: T. urinamans sp. nov. from urea-treated jarrah (Eucalyptus marginata) forest

     Institute of Agriculture and Forestry, University of Tsukuba, Tsukuba, Ibaraki 305-8572, Japan

Shun-ichi Udagawa

     Nodai Research Institute, Tokyo University of Agriculture, Setagaya-ku, Tokyo 156-8502, Japan

Neale L. Bougher

     CSIRO Forestry and Forest Products, P.O. Box 5 Wembley, Western Australia 6913, Australia

Akira Suzuki

     Faculty of Education, Chiba University, Chiba 263-8522, Japan

Inez C. Tommerup

     CSIRO Forestry and Forest Products, P.O. Box 5 Wembley, Western Australia 6913, Australia

The genus Thecotheus is reported in Australia for the first time. A new species, Thecotheus urinamans is described and illustrated and included in a key to all known species of the genus. Critical macro- and micromorphological comparisons are presented to distinguish the new species from several closely related species, particularly the widespread fungus Thecotheus crustaceus. Thecotheus urinamans was growing on rotting, moist, plant litter from an experimental plot treated with urea (ammonia) in the indigenous jarrah (Eucalyptus marginata) forest of Western Australia.

Key words: ammonia fungi, Discomycetes, Pezizales, taxonomy