Thanks for posting your reply Jim, this is what my understanding of the stripes in Clivias Aspidistras, Convalaria and so on represent, also mottling in plants such as Haemanthus, Occuba, Aspidistra.... And the reason for all my question marks. I am not in a position to go into details of cell composition in reply to Steves first response to me as I dont have the scientific knowledge, (unless I call on my friend who happens to be a virologist ;p) " Added: Most plant variegates are periclinal chimeras (Look it up) composed of distinct layers and bands of different tissues. Some of these grow better than others (i.e. often those with more chlorophyll). Depending on the specific nature of the anatomy, green portions can overtake non-green sections and seem to 'grow out' of variegation. Many of these variegates are simply unstable and should not be sold or distributed as stable cvs." > >