Histological detection of mitoses in colchicine treated specimens stained with ethidium bromide (red) and/or DAPI (blue). A. Sagittal section of the region directly behind the suckers. Anterior is to the bottom. B. Sagittal section of early genital primordium. The inset shows a general view of the same specimen. C. Close-up of germinative cells in the body of a tetrathyridium. D, E, F, G. Close-up of mitotic figures stained only with DAPI. Arrows in all figures indicate mitotic cells. cp, cortical parenchyma; g, germinative cells; gp, genital primordium; iml, inner muscle layer; m, dorso-ventral muscle cell; mp, medullary parenchyma; p, parenchymal cell; st, sub-tegument; t, tegument. Bars represent 10 μm.