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Abstract
Two new species of Thyronectria growing in Mediterranean vegetation are described from southern Spain; they are T. giennensis from Quercus ilex ssp. rotundifolia and T. pistaciae from Pistacia lentiscus. Both species are characterized by morphology of sexual and asexual morphs and by DNA data. They have olivaceous to green-brown muriform ascospores and are closely related to T. asturiensis and T. roseovirens, as determined by multigene phylogenetic analyses of a matrix containing six loci (ITS and 28S regions of nuc rDNA, ACT1, RPB1, RPB2, TEF1 and TUB2 genes). We also report that Cucurbitaria bicolor is a synonym of Thyronectria rhodochlora, the type species of Thyronectria.
Acknowledgments
The financial support by the Austrian Science Fund (FWF; project P25870-B16) to WJ is gratefully acknowledged. We thank Luis Monje and Ángel Pueblas of the Department of Drawing and Scientific Photography at the Alcalá University for their help in the digital preparation of the photographs. And we thank Javier Rejos, curator of the AH herbarium, for his assistance with the specimens examined in the present study.