stout prickles 1-2 mm long, 2-4 mm apart, arcuate, brown tipped, ascending at 20
o
, the midrib below with similar prickles; phalanges 6-13 cm long, 3.4-5.6 cm in diameter, 2.2-3.8 mm thick, clavate, slightly conpressed, sharply 5- 6 angled,
each side between the angled a curving line, when dried brown, rounded, or just below the carpel apices slightly concave, carpel apices slightly concave-concave;
carpels 2-10, their carpel apices pyramidal; stigmas 3-9 mm long, sessile, lip-like; endocarp supramedian, cartillaginous; basal mesocarp 2.5- 4.5 mm long, fibrous
and fleshy. DISTRIBUTION: West Java.
HABITAT ECOLOGY: Pandanus bidur is a typical littoral species, This species grows on altitude 0 to 5 m above sea level, fruiting in April to July.
VERNACULAR NAME: Bidur. NOTES: Pandanus bidur appears close to P. dubius. Morphologically these
species are similar to each other by sharing prop roots long 4 m high, blade linear, leaf coriaceous, leaf apex abruptly terminating at once in a point, tertiary cross
vein form oblong meshes. Pandanus dubius differs from P. bidur by three character states, phalange cuneiform, stigma cordate to reniform, and endocarp
median. SPECIMENS EXAMINED: — WEST JAVA: Ujung Kulon, Bantam-Mt. Payung,
Koorders 6133 BO; Cibunar, Dransfield 1423 BO, Wirawan 352 BO, K; Ujung Jaya, Rahayu 052 JHUN.
4. Pandanus dubius Spreng.
Pandanus dubius Spreng., Syst. Veg.3: 897. 1826. Kurz, J. Bot .5:127. 1867. Warburg, Pflanzenr. 3. IV. 50. 1900. Koorders, Recueil. Trav. Bot. Neerl. 7:
90. 1910. Koorders, Exkurs. Fl. v. Java: 79. 1911. Koorders, Exkurs. Fl. v. Java I: 6. 1913. Merril, Interp. Rumph. Herb. Amboin, 81. 1917. Stone, Reinwardtia 8:
313. 1972. Stone, Fedn. Mus. J 28: 88. 1983. Jebb, Christ. Res. Inst. 16. 82. 1991 Isotype : Carpol. 10415 BO.
Tree up to 15 m high, stem erect, diameter up to 25 cm, bark green thorny, prop root up to 4 m high. Leaves 178- 221.5-314 cm long, 19.5-1.5 cm wide at
the middle, apparently above glossy, coriaceus, above dark green, below paler
green, slightly 2 pleated; the midrib below thick about 0.5 mm wide, rigid and raised; longitudinal veins prominent throughout about 1 mm apart, tertiary cross
vein made oblong meshes 1.5-3 mm apart, these visible on the adaxial surface, and invisible below; at mid section with 88-90 secondary parallel veins in each
half exclude costa, the blade linear, but abruptly caudate which 10 cm from the tip is 31-50 mm, the base unarmed, but beginning 16-20 cm up the margin with
ascending stout prickles 2-3 mm long, 3-11 mm apart, heavy based, brown tipped, ascending at 20-30°; the nearby midrib below beginning 8.4 cm up the margin
with prickles 1.5-2 mm long, 8-10 mm apart, arcuate, subulate, reflexed, base thickened 1-2 mm wide, yellowish green; at mid section the margin with prickles
3-4 mm long
,
22-27 mm apart, stout, subulate, arcuate, heavy based, ascending 5- 10°, brown tipped; the raised midrib below with prickles 3-4 mm long, 8-11 mm
apart, arcuate, subulate, ascending, yellowish green; at the apex the margin with ascending stout prickles 1-1.5 mm long, 2-4 mm apart, the midrib below with
similar prickles, but with 2-4 mm apart; phalanges 12-14 cm long, 67-76 mm in diameter, 44-45 mm thick, cuneiform, sharply 6 angled, compressed, when dried
pale brown, the sides smooth and shining, gently curving, the apex flat or convex; stigmas 2-4 mm long, sessile, cordate to reniform, arrange in transverse series;
endocarp median, 22-25 mm long, bony, pale within, dark brown near the margin; lateral walls 1-2 mm thick, the seed cavities 22 mm long, 6 mm wide,
central in position, seeds 9-10 mm long, 6.5-7 mm in diameter, obconic; apical mesocarp of solid pith, basal mesocarp fibrous and fleshy.
DISTRIBUTION:. West Java. HABITATt ECOLOGY: Pandanus dubius is relatively specific to the West
coast of Java island. This species grows on 0 to 2 m above sea level, flowering and fruiting in April to September.
NOTES: Pandanus dubius appears close to P. bidur. Morphologically these species are similar to each other by sharing prop roots long 4 m high, blade linear,
leaf coriaceous, leaf apex abruptly terminating at once in a point, tertiary cross vein form oblong meshes.
Pandanus bidur differs from P. dubius by three
character states, phalange clavate, stigma lip-like, and endocarp supramedian.
