The morphology of stipules and leaves of Kandelia candel (L.) Druce and K. obovata Sheue, Liu & Yong were studied and compared. The discrepancies of anatomical features, including stomata location, stomata type, cuticular ridges of stomata, cork warts and leaf structures, among previous literatures are clarified. Stipules have abaxial collenchyma but without sclereid ideoblast. Colleters, finger-like rod with a stalk, aggregate into a triangular shape inside the base of the stipule. Cork warts may sporadically appear on both leaf surfaces. In addition, obvolute vernation of leaves, the pattern of leaf scar and the difference of vein angles of these two species are reported.
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