Atocarpus nitidus  (Local names Shiny Tampang or Beruni)  is a very common forest tree throughout the lowlands of Borneo. A. nitidus is very variable both in leaf and fruit morphology . The fruit can vary from 2-6 cm in diameter and may be smooth or lumpy. Overall there are some 30 species of Artocarpus in Borneo including the popular  home orchard trees Terap  A. odoratissimus and the Cempedak  A. integer.

The majority of Artocarpus produce relatively large fruit targeted at primate  or bat dispersal. Typically Artocarpus species fruit annually  during the local fruiting season but also join in mass fruiting events known as masting, which typically occur every 4-6 years in Borneo.

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Note the glossy shiny leaves hence the  Latin name A. nitidus which means shining.
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Artocarpus fruits are syncarps  the result of a globular cluster of tiny flowers. In botanical terms a fig is an Artocarpus syncarp turned inside out. Ficus and Artocarpus are both in the Moraceae family and therefore closely related.
Artocarpus nitidus  Tony Lamb (2).jpg
Whilst nearly all Artocarpus ripen green or green/yellow and attract mammal dispersers by smell  the variety of A. nitidus shown above ripens  pink to red, the skin is smooth and the size is under 2.5 cm indicating that it  is targeting hornbills for dispersal. Photo by Anthony Lamb from Tenom.

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Artocarpus nitidus Kg Sadir Kuching 001327210-L.1591708.jpg