An
accessory fruit (sometimes called
false fruit,
spurious fruit,
pseudofruit, or
pseudocarp) is a
fruit in which some of the flesh is derived not from the
ovary but from some adjacent tissue exterior to the
carpel. Examples of accessory tissue are the
receptacle of the
strawberry,
pineapple,
common fig, and
mulberry, and the
calyx of
Gaultheria procumbens or
Syzygium jambos.
Pomes, such as
apples and
pears, are also accessory fruits, with much of the fruit flesh derived from a
hypanthium. Other example could be the
anthocarps specific to the family
Nyctaginaceae, where most of the fruit comes from the
perianth (floral whorls).