Abstract
The present work involved the taxonomic study of the section Acanthocladus (Kl. ex Hassk.) Chod. This section is represented by 4 species and 2 varieties which are ilustred through analycal drawings of flowers and fruits, venation patterns and epidermises of the leaves. The fruit of the P. pulcherrima is described by first time and 2 varieties are added to the older systematic treatment of this section. For the recognition of species and varieties a key is also presented.