White Water Lily, Nymphaea alba Some of the most interesting looking pollen grains. Family: Nymphaeaceae Pollen Grain Morphology: Baculate, subspherical to slightly elongate, moncolpate Pollen Grain Size (polar): 31.5 µm by 25.9 µm (equatorial): 28 + 1.6 µm by 23.1 + 0.4 µm January 19, 2015Nymphaceae, Uncategorizedbaculate, Nymphaea alba, Nymphaeaceae, pollen, pollen grain