Abstract
Morphological comparisons and phylogenetic analyses of Tubakia species from leaves of Quercus spp. in Iowa and other areas of eastern USA revealed three novel species: Tubakia hallii, Tubakia macnabbii, and Tubakia tiffanyae. These species, as well as Tubakia dryina and Tubakia iowensis, are common leaf endophytes and pathogens on Quercus and Castanea in eastern USA, as is Tubakia americana comb. nov, originally described from Quercus in New Jersey as Actinopelte americana. New combinations of species on leaves of other hosts in the eastern USA include Tubakia gloeosporioides, Tubakia liquidambaris, and Tubakia nyssae. Asian species of Tubakia are phylogenetically compared, and the new combination Tubakia supraseptata is made to accommodate a Japanese endophyte known only by its sexual state. The earlier description of Dicarpella dryina as the sexual state of T. dryina is questioned. The new combination Tubakia stellata is made to accommodate an unusual species from Brazil.
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Acknowledgements
The authors are grateful to the numerous individuals who provided specimens and cultures for this study. The provision of materials by Suzanne Latham (California Department of Food and Agriculture) is especially appreciated.
Funding
The work upon which this publication is based was funded through grants awarded by the Northeastern Area State and Private Forestry, U. S. Forest Service.
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Thomas C. Harrington and Douglas L. McNew declare that they have no conflict of interests.
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Harrington, T.C., McNew, D.L. A re-evaluation of Tubakia, including three new species on Quercus and six new combinations. Antonie van Leeuwenhoek 111, 1003–1022 (2018). https://doi.org/10.1007/s10482-017-1001-9
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DOI: https://doi.org/10.1007/s10482-017-1001-9