Li EWs vs. Gaia colours for single members of M35 and the Pleiades. The symbols are colour-coded by the rotation period of the star. The empty symbols are M35 members without a measure rotation period. Top: M35 single stars. Circles, triangles, and squares have the same meaning as in Fig. 7. We use star symbols to represent the single stars analysed by Jeffries et al. (2021) that do not have counterparts in our sample. Bottom: Pleiades single stars taken from Barrado et al. (2016) and Bouvier et al. (2018). Note that we have chosen the Li EWs and rotation periods published in Bouvier et al. (2018) for all of the stars that are included in both studies. We have only plotted those Pleiades members whose Gaia colours are within the range covered by the M35 sample shown in the top panel. Gaia colours have been dereddened following Curtis et al. (2020) with A_V = 0.12.