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Ray Desmond: Dictionary of British and Irish botanists and horticulturists: including plant collectors, flower painters, and garden designers. 2. überarbeitete Auflage, CRC Press, 1994, ISBN 0-85066-843-3.
Eintrag beim Nationaal Herbarium Nederland (abgerufen am 18. November 2009)
Hortus Bengalensis, or a Catalogue of the Plants Growing in the Hounourable East India Company's Botanical Garden at Calcutta. S. 33, Serampore 1814
Curtis's Botanical Magazine. Tafel 1738, online
Urs Eggli, Leonard E. Newton: Etymological Dictionary of Succulent Plant Names. Birkhäuser, 2004, ISBN 978-3-540-00489-9, S. 108