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 including "Pinus" and "Quercus" species in southeastern North America and Central America, "Quercus humboldtii" in Colombia, various Fagaceae and Dipterocarpaceae species in Malaysia, and "Leptospermum" and "Pinus" species in New Zealand. In Guyana, the humic deposits on "Dicymbe" trunks bearing "B. ananas" are consistently permeated with abundant ectomycorrhizas. The fungus was reported as forming mycorrhizal associations with eucalypts in Australia, based on fruit body association with trees. Its North American distribution encompasses a range extending north from North Carolina to Florida, west to Texas and south to Mexico, and Central America. In 2008, it was reported for the first time