Figure 3
From: Rheophytic Osmunda lancea (Osmundaceae) exhibits large flexibility in the petiole
For mechanical analysis, (a) stress–strain curves are plotted; gray lines indicate O. lancea and black lines indicate O. japonica; five samples of each species are plotted; comparison of (b) bending strength and (c) breaking strain, (d) bending modulus of elasticity in the petiole. Box whisker plots marked with different letters differ significantly according to t-test (p < 0.05). Crosses indicate position of the mean.
