Patty I just did a search for your plant under "kreb 2" and it did come up, so it seems that you can search by previous, or "also known as" names...makes sense, and pretty amazing!
Jovibarba sobolifera isn't a cultivar though its a genus so this effects a lot of plants that have previously been under this genus. Although looking on Wikipedia, they are already synonyms of each other, so this change maybe cleans things up!
