[ˏbai'læmileit]
有两片的

Bilamellate \Bi*lam"el*late\, Bilamellated \Bi*lam"el*la`ted\,
a. [Pref. bi- + lamellate.] (Bot.)
Formed of two plates, as the stigma of the Mimulus; also,
having two elevated ridges, as in the lip of certain flowers.