Learn more about the definition of fruit, fruit types, the importance of fruit, and seed dispersal. The following items are fruits, according to the scientific definition, but are sometimes considered to be vegetables: An accessory fruit or false fruit (pseudocarp) is a fruit in which some of the flesh is derived not from the ovary but from some adjacent tissue. A fig is a type of accessory fruit called a syconium.
See more. The pericarp is the fruit wall developed from the ovary. In true fruits, the fruit wall and pericarp are synonymous, but in accessory fruits the fruit wall includes the pericarp plus one or more accessory tissues of various derivation.