1 Chemosystematic Review Sesquiterpenoids as chemosystematic markers in the subtribe Hypochaeridinae (Lactuceae, Asteraceae) CHRISTIAN ZIDORN a, * a Institut für Pharmazie der Universität Innsbruck, Abteilung Pharmakognosie, Josef-Moeller-Haus, Innrain 52, A-6020 Innsbruck, Austria *Address for correspondence. Tel.: +43-512-507-5302; fax: +43-512-507-2939; e-mail: Christian.H.Zidorn@uibk.ac.at.