Fig. 8.

General floral morphology and spur structure of Utricularia foliosa. a Floral morphology of U. foliosa: spur (arrow). b Nectar trichome distribution inside the spur; bar = 500 μm. c General anatomy of the spur: vascular bundle (Vb); bar = 100 μm. d Part of the section through the spur showing structure of trichome: pedestal cell (Pc), basal cell (Bc); bar = 20 μm. e Occurrence of a nectar trichome near the vascular bundle; bar = 10 μm. f Morphology of nectar trichomes and papillae; bar = 50 μm