Fig. 1.

Mean (with 95 % confidence interval) of the seed-to-ovule ratio in the studied species of Lithodora and Glandora following hand-pollination treatments. Treatments included self-pollination, intra-morph cross-pollination (L × L, S × S), inter-morph cross-pollination (L × S, S × L), spontaneous self-pollination, natural pollination plus supplementary pollination and control (natural) pollination. Because there were no statistical differences between floral morphs within species, the results for both morphs are plotted together for each taxon.