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Osmophore Development In Stanhopea Anfracta And S. Pulla (Orchidaceae), Kenneth Curry

Kenneth J. Curry

The developmental anatomy and morphology of the floral scent glands (osmophores) were examined daily from the late bud stage to post-anthesis, for 2 species which are considered to be at opposite poles in the evolutionary development of the genus. The osmophore of S. anfracta was studied using morphometric techniques to estimate volume density of selected cellular inclusions, whereas the osmophore of S. pulla was examined qualitatively. The volume density of starch/amyloplast in S. anfracta remained relatively constant throughout most of the two-day flowering period as did the degree of cell vacuolation. The flower of S. pulla lasts only one day, …