Evolution of the ⁷Li surface abundance for our rotating 1 M_⊙ models at different metallicities. The solid, dotted, and dashed lines refer to the fast-, median-, and slow-rotating case, respectively. We overplotted the spectroscopic ⁷Li abundances observed in some open clusters and collected by Sestito & Randich (2005). The numbers 1 to 8 identify the clusters: (1) NGC 2264; (2) IC 2391, IC 2602, and IC 4665; (3) Pleiades and Blanco I; (4) NGC 2516; (5) M 34, M 35, and NGC 6475; (6) Hyades, Praesepe, Coma Ber, and NGC 6633; (7) NGC 752, NGC 36780, and IC 4651; and (8) M 67. The solar abundance is indicated with ⊙.