The literature concerning tissue culture of cacti and other succulents is reviewed, with sections dealing with the major succulent families. The most work has been carried out on the Cactaceae and Crassulaceae, with fewer references to the Agavaceae, Aizoaceae, Aloaceae, Asclepiadaceae and Euphorbiaceae and other families. For each family, species which have been successfully propagated in vitro at Kew are listed.