Left: G^rP20 vs. M20 measured in the rest-frame UV images of z2LARS (big diamonds). Open circles indicate z2LARS-LAEs. Small symbols are data from literature: LAEs and LBGs at z> 6 (Jiang et al. 2013, cyan diamonds), GOODS z ~ 1.5 and GOODS/UDF z ~ 4 galaxies (Lotz et al. 2006, grey circles and yellow triangles), mean values for z ~ 3 LBGs with and without Lyα emission (Pentericci et al. 2010, red triangle and black cross), and z ~ 2.5 SMGs (Aguirre et al. 2013, black circles), where the measurements are all performed in HST images. For comparison we also show the local galaxies regridded to be at z ~ 1.5 by Lotz et al. (2006): an elliptical (open circle), an Sb (open triangle), an Scb (open square), and a merging galaxy (open star). The dashed lines indicate the criteria introduced by Lotz et al. (2006) to identify major mergers and bulge-dominated systems. Right: G^rP20 vs. M20 measured the Lyα images of z2LARS (big diamonds). The dashed green lines represent the rest-frame UV (left panel) separating regions, drawn to aid the eye. The colour coding for LARS galaxies is the same as in Fig. 13.