In this paper 30 species belonging to 11 families were studied in the search for domatia. In six species of four families they have been found. They were of two types, "en touffe de poils" and "en pochette", after the classification of CHEVALIER & CHESNAIS (1941). The examinated material was herborized, and were colected in the pastures of Escola Superior de Agricultura "Luiz de Queiroz". The leaves were examinated in both sides and in the junction of the blade with the petiole. The ocurrance or not of domatia, the type, localization, size, form, etc, was studied.