Vanilla palmarum (Salzm. ex Lindl.) Lindl. A. Detail of a flowering plant. B. Flower in diagonal view. C. Flower in lateral view. D. Flower in front view. E. Dissected perianth. Note the nectar chamber (arrow). F. Detail of the adaxial surface of a petal showing the longitudinal keel. G. Labellum in upper view. H. Detail of the apex of the labellum of a flower showing the longitudinal keel. I. Detail of the labellum showing the central labellar crest. J. Pedicel, ovary, labellum, and column in lateral view. K. Pedicel, ovary, labellum, and column in dorsal view. L. Pedicel, ovary, and column in lateral view. M. Apex of the column: in lateral view with an articulated anther (above), in lateral view with the anther removed (mid), and in ventral view with an articulated anther (below). Note the lateral wings (arrowheads). N. Anther in ventral view (above) and dorsal view (below). O. Mature fruit in lateral view. P. Transversal section of a mature fruit. Based on VAN 113 (LBMBP).