Description of Plate VI.

FIG. 1. Flower of Wrightia coccinea.

" 2. The same showing fly entrapped.

" 3. Stamen enlarged showing the "wings". (a) Inner surface, (b) Outer surface.

" 4. The " trap " formed by the stamen's perianth cut away.

" 5. The same, two of the stamens removed, to show the interior of the cone.

" 6. Diagram to show the adaptation of the wings (horizontal section).