Fig. 4.

Relationships between leaf mass per area (LMA) and (A) percentage of mesophyll tissue area (including bulliform cells and intercellular air space) of leaf cross-section (%_mesophyll), (B) percentage of epidermis area of leaf cross-section (%_epidermis) and (C) percentage of vascular tissue area of leaf cross-section (%_vascular). Data points are the means ± s.d. of three replications. The solid lines represent line regressions; * and ** indicate significance at P < 0·05 and P < 0·01, respectively, and ns indicates non-significance at P < 0·05.