Page 329: Revision of Pandanus, 16. Thailand, Vietnam — S t. John 
491 
Fig. 205 a, Pandanus hipollicaris St. John, 
from holotype. Branch, leaves, and syncarp. 
7- 15 mm distantibus basi crassa apice subulato 
subarcuatis divergentibus vel subadscendentibus 
pallide brunneis, midnervo infra cum spinis 4-5 
mm longis 10-41 mm distantibus crasse conico- 
subulatis reflexis, in sectio mediali foliis 12.5-13 
cm latis in paginis ambis rugoso-reticulatis 
marginibus cum spinis 4-6 mm longis 21—38 
mm distantibus adscendentibus basi crassa apice 
crassiter subulato, midnervo inermi, proxima 
apicem marginibus et midnervo infra cum serris 
subulatis 0. 5-0.8 mm longis 2-4 mm distantibus 
paginis ambis rugoso-reticulatis, laminis in sec- 
tio M-formatis fere ad apicem, spicis cum 7 
syncarpiis, "syncarpio maximo 15 cm. longo” 11 
cm diametro, drupis multis 3. 5-3. 9 cm longis 
8- 10 mm latis crassisque anguste ellipsoideis 
lateribus laevibus planis vel subcurvatis 5-angu- 
latis parte 1/7 supera libera, pileo oblato-semi- 
orbiculari firmo quoque solum dehiscenti, stylo 
6-8 mm longo osseoso corniformi integri ( rari- 
ter bifido) proxime curvato pallide brunneo, 
stigmate 3-4 mm longo lanceolate brunneo pa- 
pillose, endocarpio submediali 25 mm longo la- 
teribus 0.1 mm crassis cartilagineo stramineo 
pagina interiori lucido apice lanceoloideo pro- 
ducto, seminibus 15-16 mm longis 5-6 mm 
FlG. 205 b. Pandanus hipollicaris St. John, 
from holotype. Branch, leaves, and syncarp, 
and longitudinal median section of syncarp-. 
diametro ellipsoideo, mesocarpio apicali in mar- 
ginibus fibroso intra cavernoso, mesocarpio 
basali fibroso et carnoso. 
DESCRIPTION OF ALL SPECIMENS EXAMINED: 
Tree 7-15 m tall, 17-20 cm in diameter, branch- 
ing; bark pale, with short spines; "prop roots 
to 1 m. long, 5-8 cm. in diameter, armed with 
short spines”; leaves '"3.2-3.85 m. long,” 8.4-11 
cm wide near the base, thick coriaceous, abruptly 
acuminate to a subulate apex 8 cm long, the tip 
10 cm down from the apex 7 mm wide, very 
wide M-shaped in section, at 30 cm from the 
base with 70 secondary veins in each half, the 
base entire and amplexicaul, but beginning 15 
cm up the margins with thorns 4.5-7 mm long, 
7-15 mm apart, heavy based, subulate-tipped, 
somewhat arcuate, divergent or slightly ascend- 
ing, pale brownish; the midrib below with 
thorns 4-5 mm long, 10-14 mm apart, heavy 
conic-subulate, reflexed; at midsection 12.5-13 
cm wide, both surfaces rugose reticulate, the 
margins with thorns 4-6 mm long, 21-38 mm 
apart, ascending, the base heavy, the tip thick 
subulate; the nearby midrib prominent but un- 
armed; near the apex the margins and midrib 
below subulate-serrate, the teeth 0. 5-0.8 mm 
