“…On the other hand, the fact that all variables used here to describe GUs depended, to some extent, on the individual plant concerned indicates that each M. spinosum plant exhibits some degree of homogeneity in GU structure. In this respect, the differences between the individual plants studied here concerning these variables could be related to the fact that each plant would have been expressing a different ontogenetic developmental stage at the time of sampling (see Yagi 2009), despite the size evenness among the plants sampled for this study.…”