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Leaf SEM microphotographs of Begonia. A–C, Begonia caobangensis; D–F, B. circularis; G–I, B. melanobullata; J–L, B. langsonensis; M–O, B. locii; P–R, B. montaniformis. A, D, G, J, M, P, Cross section; B, E, H, K, N, Q, Adaxial surface; C, F, I, L, O, R, Abaxial surface. (Scales = 200 μm).
