Ficus scaberrima: Narrow leaf variety ?

This fig is probably an unusual  variety of Ficus  scaberrima with long narrow leaves.

Growing as an epiphyte at Kg Semundoh, Tongod in the upper reaches of the Kinabatangan River in central Sabah.

Thanks to Dr Zainal Zahari Zainuddin of the SFGC for the information and photos.