En aquest treball aportem dades de novetats florístiques o plantes rares presents a les serralades Litoral i Prelitoral catalanes. Destaquen Aira praecox, que s'indica per primera vegada al vessant sud de Catalunya, Cicendia filiformis i Salvia valentina, que són planes amenaçades i protegides.

We report new data concerning new or rare plants of the Catalan Litoral and Prelitoral Range. Aira praecox is first cited in de southern side of Catalonia, Cicendia filiformis and Sideritis scordioides become novelties for the province of Barcelona, Botrychium matricariifo-lium, Cicendia filiformis and Salvia valentina are threatened and protected species.