Fig. 10

Comparing of the simulation results to empirical data a Picea abies microphotograph coming from surface cell pattern of the shoot apex of the tree several years of age (Nakielski—unpublished materials); the most likely boundaries between three clonal sectors are indicated, b diagrams of angular variation of the cell walls forming the zigzag boundaries between sectors in the real (top, data from a) and virtual (down, data from Fig. 6a) shoot apex, c the surface cell pattern in the central region of the Arabidiopsis shoot apex (redrawn from Willis et al. [42]); three cell tetrads that meet at the point which may correspond to the dome tip are marked, d diagrams as in b but showing angular variation of division walls formed by potential initials of the real apex (top, data from c) and initial cell of the virtual apex (down, data from t₉ in Fig. 7a). For a given wall seen in the top view its angle with respect to the radius was measured