CSSA VOL.83, September-October 2011 No.5 Haworthia hybridization: Where Art and the Botanical Meet George Theodoris Spines growing outside areoles in a Gymnocalycium vatteri specimen Vladimir A.Basiuk Eriosyce spectabilis F. Kattermann, H.E. Walter & J.C. Acosta, species nova Fred Katterman, Helmut E.Walter and Juan C.Acosta Myron Kimnach Receives 2010 Cactus d'Or Award from the International Organization for Succulent Plant Study (IOS) Chuck Staples, CSSA Historian Commiphora gileadensis Jason Eslamieh Observations of the Chilean Opuntioideae Part IV, Miquelopuntia Fred Katterman Superb Succulents Duke Benadom Propagating Commiphora planifrons: An Exercise in Patience and Experimentation Dan Houston and Joe Stead Agave parviflora subspecies densiflora A newly found treasure from the Sierra Madre in Eastern Sonora, Mexico Greg Starr and Thomas R.Van Devender Umbilicus rupestris: an interesting member of the Crassulaceae in Portugal Gideon F.Smith and Estrela Figueiredo Sedum salazarii (Crassulaceae), a new species from Guerrero, Mexico Jeronimo Reyes Santiago and Omar Gozales Zorzamo On the cover Taken in spring 2008, the cover image reveals Dan Houston's self-confessed obsession with photography, and uses some image-stacking to enhance the depth of field. This shot captures male flowers, opening against a background of yellowing leaves from the previous season.