https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13959020Edit ImageSaveSaveEditCropCustom TextTrunk and roots of a pine tree cut to show growth rings; microscopic views of wood cells in longitudinal and transverse section and of a root tip. Chromolithograph by H.J. Ruprecht, 1877.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 1002 x 1200 px | 300 dpiLarge JPEG 2673 x 3202 px | 300 dpiFree DownloadTrunk and roots of a pine tree cut to show growth rings; microscopic views of wood cells in longitudinal and transverse section and of a root tip. Chromolithograph by H.J. Ruprecht, 1877.More