Answer: cupule

AnswerCrossword Clue
cupulea. cup-shaped whorl of hardened, cohering bracts, as in the acorn b. cup-shaped outgrowth of the thallus of certain liverworts c. the apothecium of a cup fungus
cupulesmall cup-shaped sucker or similar organ or part
cupulea cup-shaped anatomical structure, also CUPULA