ABOVE: The long narrow (lanceolate) leaves of a juvenile Ficus binnendijkii from Kuala Belalong in Temburong Brunei. Many species of plants in the Moraceae family (breadfruit/figs)  produce  different shaped leaves  in juvenile and adult plants. This is especially common  with the root climbing figs in Section Rhizocladus. However  in Section Conosycea  (strangling figs) only two species are known to produce dimorphic leaves, F. binnendijkii and F. maclellandii.  In both cases the juvenile leaves are long and thin (lanceolate)  and the adult leaves are shorter and and more rounded. Berg (2011) Leaf dimorphy in F. binnendijkii and F. maclellandii. Note that Berg’s  leaf illustrations clearly show strong basal veins in  both  the F. binnendijkii  leaves which are absent  from the both the F. maclellandi leaves.

03 Ficus binnendijkii Belalong Brunei lanceolate -L.1594619

 

02  Ficus binnedndijkii Bogor L.1594680.jpg

01 Ficus binnendijkii lanceolate .jpg

Ficus binnendijkii Java -L.1594681.jpg

06 Ficus binnendijkii Atlas der Baummarten von Java (1906)

05  Ficus binnendijkii L.1594618 Sarawak  .jpg
Ficus binnendijkii from the Bario Highlands in Sarawak. The leaves are intermediate  between juvenile and adult leaves.