Adrian Hardy Haworth: A new Arrangement of the Genus Aloe, with a chronological Sketch of the progressive Knowledge of that Genus, and of other succulent Genera. In: Transactions of the Linnean Society of London. Band 7, Nummer 1, London 1804, S. 11 (online).
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Adrian Hardy Haworth: Synopsis plantarum succulentarum cum descriptionibus synonymis locis, observationibus anglicanis culturaque. R. Taylor, London 1812, S. 92 (online).
