Publication: Bot. Jahrb. Syst. ( N.E.Br. ) H.E.K.Hartmann & Liede
Bibliography
Major references and further lectures
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Heidrun E. K. Hartmann “Aizoaceae F – Z” Springer, 2002
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James Cullen, Sabina G. Knees, H. Suzanne Cubey “The European Garden Flora Flowering Plants: A Manual for the Identification of Plants Cultivated in Europe, Both Out-of-Doors and Under Glass - Casuarinaceae to Aristolochiaceae” Cambridge University Press, 11/ago/2011
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Hermann Jacobsen, Vera Higgins “Succulent Plants:Description, Cultivation and Uses of Succulent Plants, Other Than Cacti” Williams and Norgate, Limited, 1935
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Jacobsen. “Handbook of succulent plants” 1328 (1960)
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Doreen Court “Succulent Flora of Southern Africa” CRC Press, 01/giu/2000