More keys will be added as they become available.  Current keys include:

Key to the Ericaceae of Argentina

Key to the Genera of Neotropical Ericaceae with Superior Ovaries

Keys to the subfamilies and genera of Ericaceae can be found in:

Stevens, P. F., J. Luteyn, E. G. H. Oliver, T. L. Bell, E. A. Brown, R. K. Crowden, A. S. George, G. J. Jordan, P. Ladd, K. Lemson, C. B. McLean, Y. Menadue, J. S. Pate, H. M. Stace & C. M. Weiller. 2004. Ericaceae. Pp. 145–194, in: The Families and Genera of Vascular Plants. VI. Kubitzki, K. (ed.), Springer, Berlin.