Plant Systematics and Evolution · 2001 · 81 citations · 0 references
Life SciencesBotanyPlant BiologyPlant EcologyPlant Reproductive BiologyPollination EcologyFloral MorphologyFloral TraitsPlant-pollinator InteractionsPollination BiologyPollination ManagementSpecialized Pollination SystemsOrchid PollinationPollination EffectivenessPollination MorphologyPollination-related Floral TraitsPollinator Ecology