Bat pollinated flowers are either white or very dull colours and use odd scents. The long stamens with lots of pollen are often a giveaway. Think of Tacca... Mark " Message du 12/06/12 16:15 > De : "Nan Sterman" > Objet : Re: [pbs] Manfreda undulata 'Chocolate Chips' > ... there are no visible petals, it certainly couldn't cue a pollinator by color or flower shape."