Mass and luminosity distribution of PPMAP luminosity peaks extracted by getsf. Caveat: with a 2.5″ angular resolution and at a distance of 2–5.5 kpc, PPMAP sources may correspond to several cores and/or protostars. The size of the markers reflects the FWHM of the sources, while the color indicates the evolutionary stage of the proto-clusters they belong to. Typical error bars are shown in the bottom-right corner of the diagram. Solid black lines represent the evolutionary tracks from Motte et al. (2018a) and Duarte-Cabral et al. (2013) for final stellar masses of 2, 4, 8, 20 and 50 M_⊙.