White-Yellow Daffodil

Here is a bicolor daffodil (Narcissus hybrid) which might also be referred to as a trumpet or large cup daffodil. The petals (white part in this picture) can be referred to as perianth and the middle part that looks like a cup or trumpet referred to as a corona.

Orange-White Daffodil - Narcissus x tazetta

Here is a different variety of daffodil (Narcissus x tazetta) I found that white petals and dark orange center.