La vallée de Cogne (Gran Paradiso, Italie) mérite-t-elle l’étiquette que lui donnait L . Vaccari en 1911: «Una esuberanza di flora que a del fantastico e que subera probabilmente quella di qualsiasi altra valle delle Alpi occidentali, forse eccettuat

Abstract

To facilitate the exploration of the alpine flora and vegetation of the Vallée de Cogne, 5 itineraries are proposed by the author. It is an opportunity for him to compare the Pennine Alps of the Valais with those of the Dauphiné - it is also an opportunity to give a better determination of little known groups of plants in a phytosociological way and to discover new ones, notably on calcareous schist and on serpentine.