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Abstract
Six penzigioid Xylaria species that are characterized by small, discoid to pulvinate, soft stromata are included in this study. Xylaria albocinctoides, X. bicampaniformis and X. lechatii are described as new; Nummularia albocincta, Hypoxylon carabayense and H. discolor are moved to the genus Xylaria to form new combinations X. albocincta, X. carabayensis and X. discolor respectively. An identification key is provided for the major aggregates of Xylaria that harbor penzigioid species as well as the species of the X. frustulosa aggregate, to which the six studied penzigioid Xylaria species belong.
Acknowledgments
This study was supported by Grant NSC 98-2621-B-001-001-MY3 from National Science Council of Taiwan and by the Summit Project of Institute of Plant and Microbial Biology, Academia Sinica to Y.-M.J. Begoña Aguirre-Hudson (K), Anna-Lena Anderberg (S), Richard Hanlin (GAM) and Amy Rossman (BPI) are especially thanked for locating and loaning specimens.
Appreciation also is extended to Gary Samuels and Christian Lechat for contributing their collections. We are indebted to Ai-Ning Sung and Mei-Jane Fang for their technical assistances in obtaining DNA sequences. Xylaria lechatii was collected under the scope of the research program “Les champignons des Petites Antilles; diversité, écologie, protection” conducted by one of us (RC) (see CitationCourtecuisse 2006). Our thanks also are extended to the French Office National des Forêts (O.N.F.) for a grant, to Société Mycologique de France (S.M.F.) for support, to Parc National de Guadeloupe (P.N.G.) for collecting authorizations and to Félix Lurel, Association Conseil Environnement Développement Durable (A.C. E.D.), for his kind help.