Illustration from the Tree Flora of Sabah & Sarawak Vol. 3. Pg. 279.

 

GLANDULIFERA Ficus glandulifera  Wall ex Miq. King (1888) SECTION ERIOSYCEAE

Latin: Covered in glands referring to the fact that this fig has two sets of waxy glands (a) At the base of the petiole (leaf stalk) and (b) At the base of the leaf in the basal lateral veins. Habits: A widespread medium size tree  of the forest understorey to 30m.

Fig: Similar species: See chart below

Taxonomy: Berg (2005) lists two very similar species for Borneo F. lamponga (very rare) and Ficus glandulifera (common). In Berg’s 2008 paper he revised the status of Ficus lamponga  which is found from India south to the Malay Peninsula and Sumatra (but not Borneo).  The two related Borneo species are divided into F. glandulifera with a widespread distribution in SE Asia including Borneo and F. lumutana (Borneo and Sulawesi). It is not unlikely that some F. glandulifera collections from Borneo currently in herbariums would be re-allocated (determined) as F. lumutana given a close inspection. Some differences are as follows;

  Glandulifera Lumutana
Lateral veins 5-8 pairs 7-9 pairs
Basal veins Similar to other side veins Running close to the margin
Basal veins Long 1/3 to ½ of the lamina Short 1/10 to 1/6 of lamina
Figs Occasionally stipitate Always stipitate
Distribution Common in forest Rare in forest
Range Thailand to N.Guinea Borneo and Sulawesi only

Stipitate refers to a fig in which the top of the fleshy fig extends as part of the stalk (peduncle). The difference is usually clear because fig and peduncle are different colours. See articles on Ficus nervosa and Ficus parietalis for examples.

Ficus glandulifera CCI18032017.jpg
Illustration from the Tree Flora of Sabah & Sarawak. Vol. 3.