Since some years ago the Cytology Departament maintains a plant collection of wild species of Arachis with which many basic researches have been conducted. This paper presents the description of ten species which are already botanically classified. Some are erect as Arachis villosalicarpa, A. diogoi and A. monticola; others are of the runner type as Arachis repens, A. glabrata, A. hagenbekii and A. villosa. A not yet identified species, called V. 360, is of the runner type too. The present description contributes to a better knowledge of the species in the some way as it has been done before for the commercial varieties of Arachis hypogaea L. The principal characteristics of the wild plants and the measurements of their parts hove been listed here, looking for a delimitation of each group of plants far the local conditions of Campinas.