FIGURE 3 in Aristolochia luudamcui (Aristolochiaceae), a new species from northern Vietnam

FIGURE 3. Morphological comparison of Aristolochia luudamcui T.V.Do sp.nov. (A–C) with A. pseudoutriformis (D–F) and A. utriformis (G–I). A, D, G. Shape of both leaf surfaces; B, E, H. Lateral view of the flower; C, F, I. Lateral view of the longitudinally dissected perianth. A–C photographed by Truong Van Do; D–I photos in Zhu et al. (2019).