Fruit drupe attached to the receptacle. In some bramble fruits (such as blackberry) the receptacle is elongated and part of the ripe fruit, making the blackberry an "aggregate-accessory" fruit. The strawberry is also an aggregate-accessory fruit, only one in which the seeds are contained in achenes. In all these examples, the fruit develops from a single flower with numerous pistils. A multiple fruit is one formed from a cluster of flowers (called an "inflorescence"). Each flower produces a fruit, but these mature into a single mass. Examples are the pineapple, fig, mulberry, osage-orange, and breadfruit. In the photograph on the right,
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