Fig. 3
Controlled hand-pollination experiments conducted in Moehringia tommasinii to study the mating system separately for the populations GL, OSP, CK, PP, ISTa and ISTb and to assess pollen limitation (ISTb only). Fruit set is given as the mean percentage (± SE) of flowers that set fruit after a given pollination treatment. Pollination treatments: As–spontaneous selfing, Ai–induced selfing, G–geitonogamy, Xe–xenogamy, Xebp–between population crosses, PL–pollen limitation, C–control, na–not applied. Different letters indicate statistically significant differences in male (upper case) and female (lower case) function according to flower age (p < 0.05). Dashed line indicates fruit set obtained by crossings between M. tommasinii and M. muscosa. Numbers in parentheses indicate the number of flowers manipulated