JungleShadows said:
Laszlo's plant is EXTREMELY cool. All of the previous variegated semps that I have heard about were unstable sectorial chimeras. This one looks to be a good periclinal chimera and should be stable. We have certainly seen similar sorts of chimeras in Aeonium and Semps are of course closely related, being a branch of the same tree, and of course we have all kinds of variegation in the sedums.
A chimera is a plant that has two genetically different sorts of tissue. In the case of variegated plants, white and green.
A sectorial chimera is when the variegation occurs as wedges of tissue or splashes. A periclinal chimera is one where the pattern is very regular, like an edge or center that is white. This would be Laszlo's plant. Periclinal chimeras have layers in the meristem that are of different genetic constitutions.
Kevin
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