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IUCN. 2002. 2002 IUCN Red List of Threatened Species. www.iucnredlist.org. Downloaded on 8 October 2002. Taylor, N.P. 1991. The genus Melocactus in Central and South America. Bradleya 9: 1–80. Taylor, N.P. and Zappi, D.C. 2004. Cacti of Eastern Brazil. Royal Botanic Gardens, Kew. Uebelmann, W.J. 1996. Horst & Uebelmann Feldnummernliste. W. J. Uebelmann, Zufikon, Switzerland. pp. 204. |
| Citation: | Taylor, N.P. 2002. Coleocephalocereus purpureus. In: IUCN 2012. IUCN Red List of Threatened Species. Version 2012.2. <www.iucnredlist.org>. Downloaded on 20 May 2013. |
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