CSSA VOL.84, May-June 2012 No.3 Eighty Years of Graham Williamson: An Appreciation Steven Hammer & Andrew Wilson Miniature Gems of the Cactus Family Elton Roberts Superb Succulents Duke Benadom Book Reviews: The Bushman Candles by Charles Craib & John Lavranos Guide to Succulent Plants of the World by Fred Dortort Bradleya 29/2011 Buck Hemenway Todd Masilko Tom Glavich An Aloe Oddity Tim Harvey Commiphora: An Introduction to the Genus Dan Mahr On Graptopetalum marginatum (Crassulaceae) Miguel Charazo-Basañez, Raul C. Acevedo-Rosas & Jose Antonio Machuca-Nuñez

On the cover: The Oak-leafed Commiphora, Commiphora wildii, known locally as omumbiri, is found in Namibia (almost certainly extending into Angola), and notable for its particularly pleasantly-scented sap. Used by the women of the local Himba tribes in their perfumes, the exudate is also harvested and exported for use in western fragrances. Anecdotally, it is reported that the men have been unable to reliably distinguish the correct species to harvest. Several other species of Commiphoro grow with C. wildii which are not so sweetly scented. The sap from these plants smells bad enough to earn them the name omumbungu, or 'the tree of the hyaena', which has apparently resulted in contamination of several batches of resin. The small specimen shown here was photographed on top of a hill west of Sesfontein in May 2005 by Tim Harvey, in frustration after having been unable to find anything more interesting after a long hike in considerable heat.