@inbook {3864, title = {Problems in the determination of evolutionary directionality of character state change for phylogenetic reconstruction (Chapter 5)}, booktitle = {Cladistics: Perspectives on the reconstruction of evolutionary history}, year = {1984}, pages = {71-87}, publisher = {Columbia University Press}, organization = {Columbia University Press}, address = {New York}, keywords = {CHARACTER POLARITY, CLADISTICS, HISTORY}, author = {Stuessy, Tod F. and Crisci, J. V.}, editor = {Duncan, Thomas and Stuessy, Tod} }