@article{articlef7079527, title = {Evolution of disparity between the regular and variant phloem in Bignonieae (Bignoniaceae)}, author = {Pace, Marcelo Rodrigo and Lohmann, Lucia G and Angyalossy, Veronica}, year = {2011}, doi = {10.3732/ajb.1000269}, journal = {American Journal of Botany} }