1. (n.) One of the leaves of the corolla, or the colored leaves of a flower.

2. (n.) One of the expanded ambulacra which form a rosette on the black of certain Echini.

androecium anther blade bract bracteole bractlet calyx carpel corolla corolla tube corona cotyledon epicalyx flag floral leaf foliole frond glume gynoecium involucre involucrum lamina leaf leaflet lemma ligule megasporophyll microsporophyll needle perianth pile pine needle pistil receptacle seed leaf sepal spathe spear spire stamen stigma stipula stipule style torus