Fig. 4.

Sphagnum spore cloud extensions after discharge in relation to capsule diameter: closed circles and long-dashed line (regression line) represent observations on peak height (h_peak) of the spore cloud; open triangles and grey curved line represent height of the spike (h_spike) just after discharge; closed squares and unbroken line represent height of the centroid (the average spore maximum; h_cen); open circles and short-dashed line represent horizontal width of the spore cloud (w_cen) at the moment of centroid maximum (t_cen). The lines are based on the simple models in Table 2, except for h_spike that also includes the quadratic relationship to capsule diameter (the only term that showed improved adjusted R² when including the quadratic directly after the linear relationship).