Evolution of Li surface abundance as a function of surface gravity for the same models as in Fig. 7. The standard Li-rich giant threshold of A(Li) = 1.5 dex is indicated by the grey dashed-line. Observational data are from Luck & Heiter (2007), Pace et al. (2012), Carlos & Meléndez (2020), Semenova et al. (2020), Mallick et al. (2023) and represented by colour-coded squares. The Sun is represented in yellow with its usual symbol (Asplund et al. 2021). TAMS and base of RGB are indicated for _νR1 models by black circles and diamonds, respectively.