Maybe it's a question of chimerism, like in Dieffenbachia picta and other plants? Marek Walnik Glucholazy, Poland -----Oryginalna wiadomosc----- From: The Silent Seed Sent: Monday, August 29, 2011 6:45 PM Subject: Re: [pbs] Variegation Also, I'm still wondering why those Clivias would gradually lose their variegation? If it was a genetic mutation, then it would not make sense on the genetic level ...