Figure 6. Number of stained pollen grains deposited on the stigmas from control flowers with mobile stamens (open circles) and from flowers with experimentally immobilized stamens (closed circles) in Berberis julianae.

Mean pollen number and SEs (numbers of flowers with stained pollen deposition/total number of sampled flowers of pollen recipients) are given for treated and control flowers in each of four trials (A–D). Note that only 15 flowers are shown, although each pollen-tracking test sampled over 100 flowers to examine the effect of stamen movements on pollen dispersal; for example, of 260 pollen-recipient flowers, only 4 flowers received pollen grains from stained stamens-immobilized (SI) flowers, that is, (4/260) in (A).

Figure 6—figure supplement 1. Number of stained pollen grains deposited on the stigmas from control flowers with mobile stamen (open circles) and from flowers with experimentally immobilized stamens (closed circles) in Berberis jamesiana.

Mean pollen number (n = 100 flowers) and SEs are given in each of four trials (A–D). Each pollen-tracking test involved 100 pollen-recipient flowers, but the 70 additional flowers not receiving any pollen are not shown.