Figure 58. 1-4. Stomatal complexes with two rings of narrow subsidiary cells (CUT-Z-FBD) and tangentic stomatal complexes (CUT-Z-FBH). 1. CUT-Z-FBD, TLM view showing stomatal complexes (SL2946, scale-bar = 50 µm); 2. CUT-Z-FBD, TLM detail of single stomatal complex (SL2946, scale-bar = 20 µm). Note the two rings of very narrow subsidiary cells; 3. CUT-Z-FBH, TLM detail of two stomatal complexes (SL2108, scale-bar = 20 µm); 4. CUT-Z-FBH, TLM view showing three stomatal complexes (SL2981, scale-bar = 20 µm).