Phylogeny and Biogeography of Cercis (Fabaceae): Evidence from Nuclear Ribosomal ITS and Chloroplast ndhF Sequence Data

http://www.phylodiversity.net/donoghue/publications/MJD_papers/2002/114_Davis_SystBot02.pdf

CHARLES C. DAVIS, PETER W. FRITSCH, JIANHUA LI, and MICHAEL J. DONOGHUE