1. Outsourcing has succulent fruit involucre, mature natural cracking.

2. A secondary involucre, as at the base of an umbel within a compound umbel.

3. Post - harvest involucre not be shedding their own system Dehulling retting.

4. The extrafloral nectaries derived from the 4~5 layers initial cells of involucre lobes.

5. The fluctuations of protein and amino acide contents in the development process of involucre, ovary and cotyledon were studied between empty shell's chestnut and normal chestnut.

6. In the daisy family the numerous bracts which subtend the inflorescence are known as an involucre.