BODY PLAN IRRELEVANT. “Although a number of growing point (meristematic) characteristics collectively influence whether a variety of morphological and anatomical features are achieved in a particular body part or plan (e.g. the duration of activity and the number of cells involved at each location, as well as the extent to which cells, tissues or organs differentiate or differ in symmetry, number, etc.), none of these features is considered here to be especially relevant to the fundamental distinctions that can be drawn among the four basic plant body plans.”
http://aob.oxfordjournals.org/content/85/4/411.full.pdf