The nectary spur is a characteristic feature of Aeridinae; a large, orchid subtribe displaying diverse pollination strategies. Stpiczyńska et al. describe and compare its anatomy for a range of entomophilous and ornithophilous species. Structural nectary features shared by Asiatic Ascocentrum and certain bird-pollinated, Neotropical orchids assigned to Maxillariinae, Laeliinae and Oncidiinae are indicative of convergence.
Ophiocaryon is a lesser-known genus in Sabiaceae, hitherto without detailed floral study and with unknown pollination mechanisms. Thaowetsuwan et al. examined floral morphology and anatomy revealing several unusual...
Investigating floral morphology in the order Geraniales, Jeiter et al. present data to demonstrate that even the most disparate floral morphologies are derived from a common origin, sharing a basic pentamerous and...
Several members of Bromeliaceae show adaptations for hummingbird pollination in the Neotropics; however, the relationships between floral structure, nectar production and pollination are poorly understood. Stahl et al...
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