Abstract
Two species similar to Collodiscula were found on bamboo during studies of Xylariaceae in Guizhou Province, China. Phylogenetic analyses of ITS, LSU, RPB2, and β-tubulin loci sequences data indicated that the two taxa are closely related to Collodiscula japonica, the generic type. The new species are introduced in this paper with micrographs and descriptions and compared with C. japonica. Collodiscula leigongshanensis sp. nov., differs from C. japonica by its large (28–35 × 8–10.5 μm), 3-septate, dark brown ascospores, with slimy sheaths at the ends. Collodiscula fangjingshanensis sp. nov. is unique in its 3-septate, light brown ascospores (19–25.5 × 4.5–6 μm), with a slimy sheath covering the whole spore. The asexual morph of C. fangjingshanensis was also formed adjacent to the sexual morph on the host.
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Acknowledgments
The authors are grateful for comments and suggestions provided by Dr. Marc Stadler. This work was funded by the grants from the National Natural Science Foundation of China (NSFC, No. 30870009), the international collaboration plan of Guizhou Province (No. G [2012]7006) and the innovation team construction for science and technology of Guizhou Province (No. [2012]4007) from the Science and Technology Department of Guizhou Province, China. Kevin D. Hyde thanks the Chinese Academy of Sciences, project number 2013T2S0030, for the award of Visiting Professorship for Senior International Scientists at Kunming Institute of Botany.
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Taxonomic novelties: Collodiscula fangjingshanensis Q.R. Li, J.C. Kang & K.D. Hyde, sp. nov., Collodiscula leigongshanensis Q.R. Li, J.C.Kang & K.D. Hyde, sp. nov.
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Li, Q.R., Kang, J.C. & Hyde, K.D. Two new species of the genus Collodiscula (Xylariaceae) from China. Mycol Progress 14, 52 (2015). https://doi.org/10.1007/s11557-015-1075-6
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DOI: https://doi.org/10.1007/s11557-015-1075-6