FIGURE 2 in Combretum xylocarpum (Combretaceae), a new liana species from China

FIGURE 2. Pollen morphology of Combretum xylocarpum under SEM. A: Equatorial view, showing the endoaperture protrusions; B: Polar view, showing the heterocolpate grains; C: Colporate aperture with endoaperture protrusions; D: Perforate and psilate exine. Arrowheads indicate subsidiary colpi.