Ficus lawesii at the Malesiana Tropicals Sdn Bhd plant nursery at Bau near Kuching.
Malesiana Tropicals hosts the Rescuing Borneo Project which is growing a large variety of native tree saplings. These young trees will be used to restore forest in Borneo which has been damaged by logging or swidden farming. At least 40 species of native Bornean figs are being grown, some of them very rare.
All photos thanks to Tim Hatch and Peter Boyce.
Note the very long smooth sharply pointed stipule highlighted by the orange arrow. Ficus lawesii is closely related to Ficus glaberrima which according to Berg (2005) does not occur in Borneo,
However look at this article showing Ficus glaberrima taken in Sumatra in which the leaves match the F. lawesii leaves above almost exactly.