Pandanus andersonii (PROSEA)
Introduction |
Pandanus andersonii St. John
- Family: Pandanaceae
Vernacular names
- Malaysia: geronggang kerupok (Iban), surong irit (Sarawak).
Distribution
Borneo (Sarawak, south-western Sabah).
Uses
The leaves are used for thatching.
Observations
A dioecious, ascending, forking shrub forming dense thickets, stem 20-25 cm × 1 cm, with ramifying roots below water table and rhizome at surface level. Leaves coriaceous, linear-oblong but M-shaped in cross-section, 3-7 m × 3 cm, base amplexicaul, margin with stout serrations 2.5 mm long and 5-13 mm apart, apex abruptly narrowed into a point, underside of midrib at base and apex with reflexed prickles. Female inflorescence ascending, peduncle 10 cm × 2.5 cm, heads often 2-3 together in a spike 15 cm long, sometimes solitary. Fruit a syncarpous polydrupe, subglobose to ellipsoid when ripe, 12-14 cm × 13-14 cm, yellow, bearing several hundreds of drupes; drupe fusiform, 35-40 mm × 5-6 mm, 5-6-angled, upper mesocarp concave, basal mesocarp fleshy-fibrous, endocarp 18-21 mm long, style 5-7 mm long, stigma 4-5 mm long. P. andersonii is restricted to freshwater swamp forest. According to B.C. Stone, P. andersonii is classified in subgenus Acrostigma , section Acrostigma .
Selected sources
165, 179.
Authors
M. Brink, P.C.M. Jansen & C.H. Bosch