L1 is a slide of a stained transverse section through a plant leaf. Fig. 2.1 shows an image of some epidermal cells from the surface of a different leaf, viewed under a microscope. 8 µm [Figure 2.1] Plants of the same species were grown for 6 months. Each plant was grown in a different percentage of shade. After 6 months, the mean specific leaf area was recorded, as shown in Table 2.1. Table 2.1 | percentage shade | mean specific leaf area /cm²g⁻¹ | |---|---| | 5 | 118 | | 40 | 140 | | 50 | 151 | | 60 | 153 | | 90 | 206 | [Figure 2.2]