Template:Friis & Nordal, 1976

• Friis, I. & Nordal, I. 1976. Studies on the genus Haemanthus (Amaryllidaceae) IV. Division of the genus into Haemanthus s. str. and Scadoxus with notes on Haemanthus s.str. Norwegian Journal of Botany 23(2): 63–77.  
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