4/2025 vol. 106
On the cover
Two fragments of the cross-sections of the stem of Zea mays L. (maize), showing the presence of lignin under a confocal microscope. The original image was color-transformed using a color palette. Photograph by Sławomir Samardakiewicz, PhD, DSc, Assoc. Prof., Laboratory of Electron and Confocal Microscopy, Faculty of Biology, Adam Mickiewicz University, Poznań. The specimen originates from the collection of the Laboratory of General Botany, Faculty of Biology, Adam Mickiewicz University.