There's an interesting story about what we call Christmas lilies!!!!! Around the world they are usually called longiflorum dutch glory. They have a white trumpet. Known in the South Island of New Zealand as the regale lily, which is a white trumpet but with pink on the outer of the petals.
The true original Christmas lily was called Candidum, St Joseph, or Madonna lily and quite small in comparison to what we see today. And add in Easter lily, very similar to this lily, and it starts getting rather interesting.
But when it comes to lilies, they come in so many different colours, styles, sizes, and perfumes, they are such a versatile flower. Stargazer lily, Oriental lily, tiger lily, Madonna lily. And the Asiatic lily which does not have a perfume. Often delivered in bunches and floral arrangements in bud, when they are kept out of direct heat, can take over a week to open and then the bouquet can really show how beautiful it is and also last for a wonderfully long time as each bud opens to shows its beauty.
So why do you see some lilies without the stamens? The stamens in the lilies hold the pollen and especially in the white varieties of lilies, if you leave the stamens there the pollen will drop onto the petals and discolour them. But on blooms that open in your bunches, carefully snip out the stamens, but be careful of that pollen, it stains, fingers, clothing, furniture. If it gets on your clothes, DON'T use water, try sprinkling some flour or talcum powder over the area and then lightly brush or vacuum off.