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The genus Sideroxylon is revised for the Canary, Cape Verde and Madeira archipelagoes. Three species are recognized: S. mirmulans which is endemic to Madeira and adjacent islets and which is the valid name for the species usually known as S. marmulano; S. canariense spec. nov. from the Canary Islands is described as new to science; S. marginata from the Cape Verde Islands has formerly been regarded as synonym or as a variety of S. marmulano and is now recognized as a separate species. A key for identification, descriptions, illustrations, distribution maps and data on the ecology of the species are given.
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Lobin et al. (2005) studied this question.
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