Phylogenetic analysis of Pinguicula (Lentibulariaceae): chloroplast DNA sequences and morphology reveal several geographically distinct radiations. - Cieslack,T..; Polepalli,J..S..; White,A..; Müller,K..; Borsch,T..; Barthlott,W..; Steiger,J..; Marchant,A..; Legendre,L.. (American Journal of Botany, 2005)