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Resupination in Flowers of Two Dendrobium (Orchidaceae) Hybrids: Effects of Nodal Position and Removal of Floral Segments
Abstract
Removal of floral segments from Dendrobium (Orchidaceae) flowers indicates that resupination may be regulated or is at least affected by pollinia and/or stigmas. Other floral segments do not appear to have a direct effect. However, excision of the perianth may result in senescence and death, which could be caused by desiccation and/or ethylene evolution.
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