Summary
A revision of the genus Seddera Hochst. (Convolvulaceae: Cresseae) throughout its area of distribution is presented and a total of 31 species is recognised. The description, ecology, distribution, conservation status and phenology of all species are presented. Seven species, Seddera hadramautica R. R. Mill (S Yemen), S. ogadenensis Sebsebe (Ethiopia: Ogaden), S. namibica Sebsebe (Namibia), S. retusa R. R. Mill (Oman), S. rhodantha R. R. Mill (Ethiopia: Sidamo), S. semhaensis R. R. Mill (Yemen: Semha island, Soqotran archipelago), S. velutina R. R. Mill (Oman), and one subspecies, S. glomerata (Balf. f.) O. Schwartz subsp. dhofarensis R. R. Mill (Oman) are described in this paper as new taxa.
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Acknowledgements
SD would like to acknowledge receipt of the 2002 Dennis Stansfield Award from the Linnean Society and NUFU for providing support to visit herbaria and field work in Ethiopia. The Royal Botanic Garden Edinburgh, at which RRM is employed, is supported by the Scottish Government Rural and Environment Research and Analysis Directorate (REARAD). We would like to thank Keepers and Directors, and staff of ADEN, BM, C, E, EA, ETH, FT, K, P, UPS and WIND for making available material for study or others for responding to our queries on types and Juliet Beentje for the illustrations. We also would like to acknowledge the generous financial assistance from the Royal Botanic Gardens, Kew to cover the cost of the illustrations.
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Demissew, S., Mill, R.R. Revision of the genus Seddera (Convolvulaceae). Kew Bull 64, 197–233 (2009). https://doi.org/10.1007/s12225-009-9112-8
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DOI: https://doi.org/10.1007/s12225-009-9112-8