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Micro-morphology of Utricularia cornigera palate. a Papillae and glandular trichomes; bar = 300 μm. b Glandular trichomes with acorn-shaped head; bar = 50 μm. c Glandular trichome with bicellular head; head cells are of similar size; bar = 30 μm. d Glandular trichome with bicellular head; head cells differ in size; bar = 20 μm
