Acanthus Family

Figure 1. JusticiathailandicaA habit B magnifying the portion of leaf blades showing the tomentum C adaxil surface of inflorescence bract D abaxil surface of inflorescence bract E bract F bracteoles G calyx H corolla I dorsal view of the anther J frontal view of the anthers K pistil with nectary disc L, M opened capsule N capsule with calyx O seed. (Drawn by Cui Dinghan from the holotype van Beusekom et al. 3759).

Figure 2. JusticiathailandicaA adaxial surface of inflorescence bract B abaxial surface of inflorescence bract C bract D bracteoles E stigma F pistil with nectary disc G calyx H dorsal view of anther I frontal view of anther J opened capsule K outside of capsule L inside of capsule showing retinacula M seed.

Figure 4. Distribution map of Justiciathailandica (black circle).

Figure 3. Pollen and seed morphology of Justiciathailandica under SEM A pollen grain in equatorial view B exine ornamentation of pollen grain C seed D seed testa.