Fig. 9.

Detail of palate Utricularia nelumbifolia showing diversity of glandular trichomes and conical papillae. a Papillae and various types of trichome; bar = 100 μm. b, c Trichomes with unicellular acorn-shaped head. Note the variation in size of trichome heads; bars = 30 and 50 μm, respectively. d Trichome with unicellular, pointed head. Note the distinct central cell; bar = 30 μm. e, f Trichomes with bicellular head and squat stalk cell; bars = 50 and 20 μm, respectively. g–i Trichomes with branched, multicellular heads. Again, note the range in the size of head cells; bars = 50, 30, and 20 μm, respectively