Diplodiscus latifii (A–C) and D. longifolius (D–F) A lower surface of leaves with scattered prominent black dots and densely small pale brown scales observed under low magnification B lower surface of leaves densely covered by brown dentate-lepidote scales with scattered dark brown subentire-lepidote scales C petiole densely covered by brown dentate-lepidote scales D lower surface of leaves densely covered by light brown stellate-lepidote scales observed under low magnification E leaves densely covered by light brown stellate-lepidote scales F petiole densely covered by light brown stellate-lepidote scales.