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P.  Kores, Molvray, M., Weston, P. H., Hopper, S. D., Brown, A. P., Cameron, K. M., and Chase, M. W., ?A phylogenetic analysis of Diurideae (Orchidaceae) based on plastid DNA sequence data?, American Journal of Botany, vol. 88, no. 10, pp. 1903 - 1914, 2001.

K. M.  Cameron, Chase, M. W., Whitten, W. M., Kores, P., Jarrell, D., Albert, V., Yukawa, T., Hills, H., and Goldman, D. H., ?A Phylogenetic Analysis of the Orchidaceae: Evidence from rbcL Nucleotide Sequences?, American Journal of Botany, vol. 86, no. 2, pp. 208 - 224, 1999.

P.  Kores, Molvray, M., Weston, P. H., Hopper, S. D., Brown, A. P., Cameron, K. M., and Chase, M. W., ?A phylogenetic analysis of Diurideae (Orchidaceae) based on plastid DNA sequence data?, American Journal of Botany, vol. 88, no. 10, pp. 1903 - 1914, 2001.