Sucrose has been shown to increase the growth of Utricularia stellaris in axenic culture (HARDER and ZEMLIN, 1967). Comparable cultures of Utricularia were incubated for 3 and 7 hours with tritiated uracil, and then nucleic acids were prepared. With sucrose, the incorporation is about 5 times higher
UNASSIGNED
Bird pollination is rare among species in the genus Utricularia, and has evolved independently in two lineages of this genus. In Western Australia, the Western Spinebill, Acanthorhynchus superciliosus, visits flowers of Utricularia menziesii (section Pleiochasia: subgenus Polypompholyx).