Pandanus labyrinthicus Kurz ex Miq.

lanceolate, thin coriaceous, tapering gradually toward the tip and ending in a subulate apex; staminate inflorescence terminal, erect, 32-36 cm long, flowering part of spike 23-27 cm long, bearing 8-10 lateral racemes, these 5 - 9 cm long, 2.5 -3 cm wide, cylindric-narrowly lanceolate, densely flowered; stamens 10-30 in racemes; the fused axis 11-13 mm long, free filament tips 0.75-1.5 mm long, anthers 1.5-3 mm long, bearing terminal subulate connective prolongation 0.3-0.7 mm long. PHENOLOGY: Flowering and fruiting in March to April and August. NOTES: Pandanus labyrinthicus appears close to P. nitidus. Morphologically these species are similar to each other by sharing prop root muricate in line, bark with abundant rootlet, leaves coriaceous, leaf apex gradually long tapering to subulate apex and tertiary cross vein not visible. Pandanus nitidus differs from P. labyrinthicus by three character states, prop roots arise from lateral branched, blade linear, leaf base underneath hardened and swollen. SPECIMENS EXAMINED: Hortus Bogoriensis, culta. II D 64, Rahayu 068 JHUN.

8. Pandanus leram Jones var. andamanensium Kurz. Stone

Pandanus leram Jones var. andamanensium Kurz. Stone, Ceyl. J. Sci. Biol. 11: 120. 1975. Stone, Fedn. Mus. J 28: 92-93. 1983. — Type: Nicobar Island, Andaman island, very common in jungles Kurz. Tree 5-6 m tall, with many long stout prop root. Leaves 115-147.5 cm long, 7-13 cm wide, coriaceus - thick coriaceus, glossy above, apical ventral pleats smooth; the midrib below narrow 0.1-.3 mm, not raised - raised and projecting below; longitudinal veins indistinct on the adaxial surface, ± prominent on the abaxial surface, about 0.5-1 mm apart, tertiary cross vein makes tesselate appearance; at mid section with 87-92 parallel veins in each side, the blade linear abruptly taperig to trigonous caudate apex which 10 cm back from the tip is only 6–6,5 mm wide; base not seen. Near the base the margin with thorne 3-4 mm long, 5-6.5 mm apart, stout subulate, arcuate, ascending at 25°; the midrib below with thorn 2 – 3 mm long, 8-11 mm apart, stout subulate, arcuate, reflexed; at mid section the margin with thorns 2.5-4 mm long, 7-11 mm apart, arcuate, subulate flat appresed, ascending; the nearby midrib below with thorn 3.5-4 mm long, 28- 30 mm apart, stout subulate, arcuate, appresed ascending, the base widened ± 2 mm wide; at the apex the margin with prickles 0.5 mm log, 1–1.5 mm apart, subulate, arcuate, appresed ascending, ascending at 10 o , the midrib below with prickles 1-1.5 mm long, 2-3 mm apart, subulate, arcuate, appresed ascending; phalange 9-9.5 mm long, 5.2-6.5 cm wide, 13-25 mm thick, obovatus; the apex cuneatus, convex, the sides 3-4 angled, smooth, when drying pale brown, lateral suture mostly none, central apical sinuses 15-20 mm deep, carpel 5-7, the apices subequal, through the sloping sides make the marginal ones somewhat the larger; stigma 3-5 mm long, sessile, trianguler–orbicular, brown; endocarp slightly submedian, bony, pale brown, its margin 0.8-1 mm thick; seeds 25 mm long, 11 mm in diameter, elliptic, apical mesocarp one large undivided area occupying 2 3 of the phalange, transverse by numerous fibers; lower mesocarp fibrous and fleshy. DISTRIBUTION: West Java to Central Java. HABITAT ECOLOGY Pandanus leram var. andamanensium is a typical littoral species. This species grows on altitude 0.5 m above sea level, fruiting in June. VERNACULAR NAME: Pandan wong. NOTES: This is evidently the wild form, with much smaller phalanges than P. leram proper. Specimens from Java are intermediate in phalange size between var. leram as it appears in cultivation, and var. andamanensium. It must likely drifted from the Andaman – Nicobars area, but could have come from farther out in the Indian Ocean, e.g Maldive Island, attols where var. leram certainly occurs. Such drift probably accounts for the distribution of the species, especially in Javan localities Stone 1983a. Pandanus leram var. andamanensium appears close to P. dubius. Morphologically these species are similar to each other by sharing linear leaves, coriaceous leaves, leaf apex abruptly terminating at once in a point. Pandanus dubius differs from P. leram var. andamanensium by three character states, tertiary cross vein form oblong meshes, phalange cuneiform, and stigma cordate to reniform.