1. Department of Animal Ecology, Evolution and Biodiversity, Ruhr-University Bochum, 44780 Bochum, Germany
2. Plant Biomechanics Group, Botanical Garden, University of Freiburg, 79104 Freiburg im Breisgau, Germany
3. Cluster of Excellence livMatS @ FIT—Freiburg Center for Interactive Materials and Bioinspired Technologies, University of Freiburg, 79110 Freiburg, Germany
4. Botanical Garden, Department of Biology, Technical University of Darmstadt, 64287 Darmstadt, Germany