I A Shantser

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Southern African succulents of tribe Senecioneae are likely to have come from non-succulent inhabitants neighbour mesic to semi-arid areas of S to SE Africa. Four phyla are believed to have evolved successively in situ by colonizing arid regions of SW Africa. The Senecio medley-woodii-phylum must have been the first one to have developed the succulent(More)
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