cupule
/ˈkjuːpjuːl
/noun Botany & Zoology
A cup-shaped organ, structure, or receptacle in a plant or animal.The ovule is surrounded by integument tissues which produce the seed coat, and in the earliest seed plants another layer called the cupule enclosed the entire ovule/seed....
- Thus, the cupule is a simple uniaxial structure.
- Lyginopterids bore cupules, which can be described as tulip shaped structures.
Origin
Late Middle English: from late Latin cupula (see cupola).