Stern, W.L.and W.S. Judd, W.S. 2000. Comparative anatomy and systematics of the orchid tribe Vanilleae excluding Vanilla. Bot. J. Linn. Soc. 134:179-202.
Stern, W.L.and W.S. Judd, W.S. 2000. Comparative anatomy and systematics of the orchid tribe Vanilleae excluding Vanilla. Bot. J. Linn. Soc. 134:179-202.
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