FIGURE 2 in Revision of the fern genus Diplazium (Polypodiales: Athyriaceae) in Thailand

FIGURE 2. Microscopic characters of Diplazium. A–D, rhizome scale (A, entire and not black marginal cells. B, entire and black marginal cells. C, toothed and not black marginal cells. D, toothed and black marginal cells); E–F, cross-section of stipe (E, cross-section at lower portion of stipe showing two vascular bundles. F, cross-section of stipe at base of lamina showing U-shaped vascular bundle). G–I, patterns and position of sori. J–K, SEM photograph of spores showing ridge or wing like folds ornamentation.