Photo above shows the semi-amplexicaul stipule scar of Ficus midotis.
All Bornean figs have a sharply pointed terminal leaf bud known as a “stipule”. When the stipule shrivels and falls off, it leaves a circular scar on the twig. Botanists use this stipule scar as a distinguishing feature between different groups of figs.
Most Bornean fig twigs show a full circular scar. The exception are the figs in Section Sycidium (26 species) most of which show an incomplete ring.
This is known as a semi-amplexicaul stipule scar.
Below we show photos of the fully amplexicaul (complete ring) stipule scars of two common figs. Ficus microcarpa and Ficus carica.
