A.  Paton, Harley, R., and Harvey, T., ?Vitex: A Newsletter for Lamiaceae {&} Verbenaceae Research?, Vitex: A Newsletter for Lamiaceae {&} Verbenaceae Research, pp. 1?23, 2000.

R. M.  Harley, Paton, A., and Harvey, T., ?Lamiales Newsletter?, Lamiales Newsletter, pp. 1?13, 1998.