Fig. 4

Reproductive pattern of Gagea graeca, shown are cohorts of plants corresponding to classes of 0.25 mm diameter width of the replacement bulb (n = 405). a Proportions of plants forming flowers (black circles) and a basal bulbil (white circles, the latter are printed with a slight shift to the right to make overlaps with the black circles visible). Graphs were fitted against the equation y = 1/[1 + e^{−(x−xo)/b}] with xo as the threshold for the formation of the respective structure (indicated by a vertical dotted line). b Average numbers of basal bulbils (white circles) and flowers (black) per plant in the respective diameter classes. c Seed set. Bars for the latter two plots denote the standard error of means