..........

IUCN/SSC Cycad Specialist Group

.
World List of Cycads

The World List of Cycads represents a compilation of currently recognized (valid) names of all known extant cycad taxa. The very first World List was published in 1985 in Encephalartos, the Journal of the Cycad Society of South Africa. There have been a total of ten world lists (including the one that is currently in prep), most of which have been included in the proceedings of the International Conferences on Cycad Biology that been held every three years since 1987. The next World List should be published in 2006 as part of the proceedings of CYCAD 2005.

Each new list has followed new discoveries and changes in taxonomy and outlook that made previous lists obsolete. The following link represents the most recent published World List of Cycads.

Hill, K. D., D. W. Stevenson & R. Osborne. 2004. The world list of cycads. Pp. 195-212, In: J.A. Lindström (ed.), Proceedings of the Sixth International Conference on Cycad Biology (CYCAD 2002). Nong Nooch Tropical Garden, Pattaya, Thailand.

There is also an online database of cycad taxa based on the World List, called The Cycad Pages, that was developed and is maintained by Ken Hill.

In 2005, on the 20th anniversary of the World List of Cycads, Jody Haynes conducted a historical review of all ten world lists and compiled a comprehensive comparison table listing every taxon ever included on a world list and indicating when each name was added and, in some cases, later removed. This document has never been published, but the most recent update (May 2006) is available for download using the link provided below.

Haynes, J. L. 2006. Historical Review of the World List of Cycads. Unpublished. 37 pp.
(1.1 Mb)

Note: To read or print PDF documents, you will need Adobe Acrobat or the free Adobe Acrobat Reader software installed on your computer. If you do not have Acrobat Reader, you may download a free copy from the Adobe website by clicking on the following button: 
.
.

...