Fruit anatomy Fruit anatomy Fruit anatomy is the plant anatomy of the internal structure of fruit. Fruits are the mature ovary or ovaries of one or more flowers. In fleshy fruits, the outer layer (which is often edible) is the "pericarp", which is the tissue that develops from the ovary wall of the flower and surrounds the seeds. But in some seemingly pericarp fruits, the edible portion is not derived from the ovary. For example, in the fruit of the ackee tree the edible portion is an aril, and in the pineapple several tissues from the flower and stem are involved. The
Boletellus ananas although he admitted it was impossible to come to any definitive conclusions until mature fruit bodies and spore prints were available for study. Rolf Singer and colleagues (1992) suggested the name "Boletellus coccineus" for "Boletellus ananas". Singer created this name, however, in the mistaken belief that the earliest available name for the taxon was "Boletus coccineus", proposed by Elias Magnus Fries in 1838. However, Fries’s name is an illegitimate later homonym (compare with "Boletus coccineus", named by Bulliard in 1791), and Singer’s combination is actually based on "Strobilomyces coccineus", named by Pier Andrea Saccardo in 1888. The earliest available name