Ramella, L. & P. Perret (ed.) (2012). Notulae ad Floram paraquaiensem, 112. Candollea 67: 187–189. In Spanish, French and English abstracts.
Thirty-seventh installment of a series dedicated to the presentation of taxonomic, nomenclatural or floristic novelties in relation with the project “Flora del Paraguay” as well as complements to already published treatments. Organizational information and accounts on the advancement of the Flora are sometimes added by the editors. — Notula 112. Matelea balansae Morillo & Fontella (Asclepiadaceae), a new species for the flora of Paraguay, by Gilberto Morillo & Jorge Fontella Pereira.