Abstract
This paper presents new species, combinations, national reports and host records for the South African rust fungi (Uredinales/Pucciniales). Endophyllum mpenjatiense on cf. Hibiscus sp. (Malvaceae), Phakopsora combretorum (anamorph Uredo combreticola) on the new host Combretum apiculatum (Combretaceae) and Uredo sekhukhunensis on Ziziphus mucronata (Rhamnaceae) are described as new species. Dietelia cardiospermi and E. metalasiae are proposed as new combinations to replace Aecidium cardiospermi on Cardiospermum halicacabum (Sapindaceae) and A. metalasiae on Metalasia spp. (Asteraceae), respectively. Four species are new records for South Africa: Crossopsora antidesmae-dioicae on Antidesma venosum (Euphorbiaceae), Phakopsora ziziphi-vulgaris on Z. mucronata, and Uromyces cypericola and Puccinia subcoronata, both on a new host, Cyperus albostriatus (Cyperaceae). The record of P. subcoronata is the first one from outside the New World. Puccinia scirpi is reported as a possible addition to the South African rust fungi. New host records and observations are presented for Pucciniastrum agrimoniae that is recorded on two new host genera and species, Cliffortia odorata and Leucosidea sericea (Rosaceae), Uromyces cypericola whose urediniospores are described for the first time, Phakopsora stratosa in that spermogonia and Uredo-like aecia were discovered, and for Sphaerophragmium dalbergiae in that characters of the urediniospores are re-evaluated. A lectotype is selected for Aecidium garckeanum and spermogonia are reported for this rust for the first time. The rust fungi of Ehrharta (Poaceae) are discussed and critically evaluated in the light of spore morphology and host species.
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Acknowledgements
We thank Anja Rössel and Elisabeth Uhlmann for companionship and assistance in the field, the German Ministry of Education and Research (BMBF) for funding the field stays of R.B., and the Western and Northern Cape Nature Conservation Boards in South Africa for issuing collecting and export permits. Loans of specimens granted by the curators and directors of B, HBG, PDD, PREM, PUR and VPRI are gratefully acknowledged. Roger Peterson and an unknown reviewer are thanked for helpful corrections and comments on the manuscript.
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Taxonomical novelties: Dietelia cardiospermi (Cooke) R. Berndt & A. R. Wood. Endophyllum metalasiae (Syd. & P. Syd.) A. R. Wood & R. Berndt. Endophyllum mpenjatiense A. R. Wood & R. Berndt. Phakopsora combretorum A. R. Wood & R. Berndt. Uredo sekhukhunensis R. Berndt & A. R. Wood.
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Berndt, R., Wood, A.R. Additions to the rust fungi of South Africa. Mycol Progress 11, 483–497 (2012). https://doi.org/10.1007/s11557-011-0764-z
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DOI: https://doi.org/10.1007/s11557-011-0764-z