Most of what I've seen places almonds in the genus Prunus, rather than in a separate-yet-related genus. But I don't know enough botany to know which we should do.
This is a question for Josh Grosse, I think, as he seems knowledgeable in these areas. --KQ
No, not really, I've been making the classification as I sort through the materials on hand and try and figure things out, so I'd have had to do some reading. Thanks very much to Lee Daniel Crocker for saving us the trouble! --JG