Fig. 6.
Relationships between leaf length and vein density, and between vein density, vein branching density and freely ending veinlet density in multiple samples of adult-phase leaves harvested at different stages of ontogeny from C3 and C4 Flaveria plants. Trendlines indicate the relative changes in densities as leaves expand. (A) Vein density vs. leaf length in C3 F. robusta and C4 F. bidentis. (B) Branching and freely ending veinlet densities vs. vein density in C3 F. robusta. (C) Branching and freely ending veinlet densities vs. vein density in C4 F. bidentis.