Table 1.

Geometrical parameters of hooks in four plant species (data from Gorb & Gorb [2]). n denotes the number of hook samples.

geometrical parametersAgrimonia eupatoriaCircea luterianaGalium aparineGeum urbanum
means.d.nmeans.d.nmeans.d.nmeans.d.n
ls (μm)1845.9408.3201066.1272.820281.142.1204654.6369.820
lh (μm)94.313.32087.240.92019.64.820235.034.120
dh (μm)64.211.12046.616.2209.82.62096.78.720
sh (μm)90.920.920173.660.32029.611.820220.329.020
dd (μm)67.810.12057.719.22011.22.32097.67.520
db (μm)169.264.62083.026.42045.18.320298.456.620
hooks per fruit73.710.210182.124.76183.327.281050