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Abstract
A pyrenomycete featuring uniperitheciate stromata embedded in a subiculum and asci with iodine-positive apical ascal rings that bear scolecosporous ascospores is described as new. The fungus, Ophiorosellinia costaricensis, is known only from the type location in Costa Rica. It has been cultured, but no anamorph was discovered.
PPNS 0365. Department of Plant Pathology, College of Agriculture and Home Economics, Washington State University, Project 1767. This work was supported in part by National Science Foundation grant DEB-9813304 to JDR, the Global Environmental Facility through its implementing agency, the World Bank, for the project Biodiversity Resources Development developed by INBio and the Ministry of Environment and Energy (MINAE) in Costa Rica and by National Science Foundation Grant DEB-0072684 to SH and FF. We acknowledge the aid of Universidad de Costa Rica for use of facilities and equipment of A.M. Brenes Biological Reserve. We thank M.J. Adams, Washington State University, Pullman, for aid with photography.