FICUS SUMATRANA Ficus sumatrana Miq. (1867) SECTION: CONOSYCEAE
Latin: From Sumatra where the type collection originated.
Habit: Large strangler to 30 m, most common in the hills and mountains of N. Borneo up to 1600 m. Now very scarce in areas where it was once common
Leaves: Small spirally arranged leaves, 4-10 cm (up to 14 cm) long x 1.5-5 cm wide with a petiole (leaf stalk) normally up to 1 cm but occasionally up to 2. cm long. The leaves are stiff and glossy with an obvious pair of basal veins but lightly defined parallel side veins.
Fig: Small 0.8-1 cm, sessile (no stalk) in pairs in the leaf axils. Figs ripen green to orange to red. Basal bracts large and obvious.
Similar species: Ficus delosyce, and Ficus borneensis
Distingush: F. sumatrana is characterized by very plain even leaf venation in which the tertiary veins run parallel to the main veins.
- F. delosyce has a peaked area around the ostiole and the leaf venation is more prominent.
- F. borneensis: The leaf is small and oval shaped. The fig is oblong not round.
Distribution: Uncommon in the lowlands but one of the commonest strangling figs in the hills and mountains of Borneo.
Sabah: The commonest strangling fig on Kinabalu including the forest around Kinabalu Park HQ., Also common at Tenom.
Brunei: Very rare in Brunei (Coode 1996) has only one record from the Andulau FR.
Sarawak: At Lambir uncommon-the 17/20 commonest strangler.
Kalimantan: Gng. Palung (Kalbar) –not present. Absent from the peat swamp forests of southern Kalimantan but recorded at Danau Sentarum Kalbar ) and Kutai (Kaltim) .
Range: Myanmar to Vietnam south to the Malay Peninsula, Sumatra, Java, Borneo and the Philippines.