The plant family Crassulaceae was named and described by Jean Henri Jaume Saint-Hilaire in Exposition des Familles Naturelles in 1805.
Plants of the World Online lists 36 genera in this family commonly known as the stonecrop or orpine family (as od 1-21-21 when I am updating this page.
There are several intergenic hybrids in the Crassulaceae Family such as:
xCremneria (Cremnophila x Echeveria),
xCremnopetalum (Graptopetalum x Cremnophila),
xCremnosedum (Cremnophila x Sedum),
xGraptophytum (Graptopetalum x Pachyphytum),
xGraptosedum (Graptopetalum x Sedum),
xGraptoveria (Graptopetalum x Echeveria),
xLenopetalum (Lenophyllum x Graptopetalum),
xPachysedum (Sedum x Pachyphytum),
xPachyveria (Pachyphytum x Echeveria),
xSedeveria (Sedum x Echeveria),
xTacipetalum (Graptopetalum x Tacitus),
xTacisedum (Tacitus x Sedum (some Graptopetalum x xGraptosedum/Tacitus x xTacisedum)), AND
xTaciveria (Tacitus x Echeveria)
I didn’t update that list so it may not be accurate or complete.
Of course, with the testing, some of the above names may change and may not even be intergenetic hybrids after all. Time will tell…
For more information about this family of plants, please click on the links below. The links take you directly to the information about the family. Some of the websites below may not be up-to-date… It is all a work in progress.