Hello We have identification and synonymy problems about : Launaea cornuta (Hochs. ex Oliver & Hiern) Jeffrey Launaea chevalieri O.Hoffmann & Muschler Launaea taraxacifolia (Willd.) Schumach. & Hornem. Who can help us ? Thank you very much Pierre GRARD / Thomas le BOURGEOIS CIRAD CA BP 5035 34032 Montpellier Cedex 1 FRANCE e-mail : grard at amatrop.cirad.fr