FIGURE 4 in Isotrema guangdongense (Aristolochiaceae), a new species from Guangdong, South China

FIGURE 4. Living plants of Isotrema kwangsiense. A. Habitat and habit; B. Racemes; C. Adaxial (left) and abaxial (right) side of leaf; D-E. Front and lateral view of flower, respectively; F. Longitudinal section of flower, showing changeable color and villous adaxially; G. Gynostemium, showing the paired anthers and their position. All photos were taken by You-Sheng Chen based on plants cultivated in South China Botanical Garden.