Left panel: LF of Psc-Eri stream (cyan) and of the Pleiades (black steps). Right panel: PDMF of the same groups, Psc-Eri stream (semi-filled cyan bars), Pleiades (black step function). The black line shows a power-law MF with a slope of −2.15 fitted to the Psc-Eri PDMF for a mass range between 1 and 2.5 M_⊙, and a slope of −0.73 in the mass range 0.3–1.0 M_⊙. The dashed red line shows an IMF with the Salpeter slope of −2.35, whereas the dashed blue line is the IMF from Kroupa (2001).