Club-shaped organs as additional osmophores
within the Sauromatum inflorescence: odour analysis, ultrastructural changes and pollination aspects.
This may be explained by the specific relationship between Euglossa and these flowers, which produce perfume through osmophores
in the connectives (Sazima et al., 1993; Soares et al., 1989), restricting the number of visitors and, therefore, pollen flow.
The role of scent glands in pollination: on the structure and function of osmophores
. Smi thsonian Institute Libraries, Amerindl, Nueva Delhi, India.
on the lateral sepals are the source of the long-distance pheromonelike attractant, whereas the insectiform labellum serves as a short-range visual and tactile mimic of the flightless female thynnines.
They brushed the osmophores
on the inner side of the inner petals.