JungleShadows said:Crests are formed when the meristem (growing tip of the plant, in semps it would be the tissue at the center of the rosette) is normally DOME shaped. This allows for a symmetry of the plant as leaf primordia arise from the dome in an orderly position creating a symmetrical rosette. When the meristem expands to a LINE now the leaves arise from points along the line, forming a crest instead of a normal rosette.
Kevin
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