Figure 4 - correlation (MS powerpoint file)

Figure 4. Correlation between functional flower tube length [mm], as the distance from the bottom of the calyx to the end of the calyx tube, or the petal claws, or the corona scales (which ever is extending functional tube length the most), and median amount of sucrose (%) in 78 Caryophylloideae in relation to pollination system (A), and phylogeny (B) (Spearman (all species) rS = 0.542, p < 0.05; Spearman (nocturnal) rS = 0.39, p < 0.05; Spearman (diurnal) rS = 0.84, p < 0.05); Spearman (self-pollinated) rS = 0.31, ns). Dianthus glacialis 1* (mainly selfing), data from Erhardt & Jäggi (1995); Dianthus gratianopolitanus 2* (intermediate between butterfly and moth pollination), data from Erhardt (1990)