FIGURE 2. Aristolochia thotteaeformis T.V in Aristolochia thotteaeformis, a distinct new species from southern Vietnam

FIGURE 2. Aristolochia thotteaeformis T.V.Do & Luu sp.nov. A. Erect shrub; B. Zig-zag young branches; C. Adaxial leaf surface; D. Pubescent young branches with short internodes and swollen nodes (indicated by white arrows); E. Cymose inflorescence bearing flowers with a distinct stipe (indicated by a white arrow); F. Frontal view of opened flower; G. Lateral view of opened flower; H. Longitudinal section showing inner surface of perianth; I. Close up of a 1-lipped limb and mouth; J. Close up of a 6-lobed gynostemium; K. Top view of a 6-lobed gynostemium; L. Shape of capsule; M. Abaxial surface of seed showing densely circular warts. Photographs by Hong Truong Luu, Tran Quoc Trung Nguyen, Quoc Dat Nguyen, Thanh Trung Nguyen; designed by Truong Van Do.