Page 473: Revision of Pandanus, 31 — St. John 
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leaves 40 mm wide, at midsection with 40 
parallel secondary veins in each half, and with 
the margins with prickles 2.2-3 mm long, 7-11 
mm apart, straight or subarcuate stout subulate, 
strongly ascending. 
P. bracteosus is placed in the section Micro- 
stigma, although the staminate flowers are un- 
usual. This section has the several stamens 
united in clumps and with the free filament tips 
umbellate at the apex of the united filament 
lower parts, the column, which is typically 
longer than the anthers and their free filament 
tips. In P. bracteosus the stamens of a clump are 
few, mostly two, and the column is only y 7 the 
length of the anthers and their free filament 
tips. One other known species, P. polycephalus 
Lam., also has the column much shorter than 
the free parts. In both of these species the free 
parts are truly umbellate on the apex of the 
column. Despite its shortness the grouping and 
connation of the stamens seems to follow the 
same basic plan. Consequently P. bracteosus 
seems to be correctly placed in the section 
Microstigma. 
The new epithet is the Latin adjective 
bracteosus, with bracts, and is given with refer- 
ence to the persistent bracts hiding the syncarps. 
Pandanus sulcatus sp. nov. (sect. Rykia) 
Fig. 278 
diagnosis holotypi: Licet frutex, ramulis in apice 
12 mm diametro, foliis 1 6 mm latis coriaceis prof unde 
U-sulcatis 2-plicatis licet ligulata in puncto 8-11.5 cm 
ex basi cum 20-21 nervis parallelis secundariis in 
quoque dimidio, nervis tertiis reticulatis breviter 
oblongis formantibus, basi inermi pallida, ex 3-4 cm 
marginibus cum aculeis 0.8-1. 5 mm longis 3-7 mm 
separatis subulati-serrulatis ad arcuato-subulatis crassis 
compressis adscendentibus stramineis, midnervo prox- 
imo infra inermi, sectione mediali non visi, in apice 
subulato marginibus et midnervo infra cum aculeis 
0. 5-0.8 mm longis 1-2 mm separatis arcuati-subulatis 
adscendentibus stramineis, infructescentia spicata cum 
3 syncarpiis, pedunculo 9.5 cm longo 7 mm diametro 
3-laterato subclavato, syncarpio apicali 6 cm longo 
3.8 cm diametro cylindrico obtuso cum 90 drupis, 
syncarpiis lateralibus 4-4.3 cm longis 3.5 cm diametro 
ellipsoideo cum 80 drupis, eis 19-21 mm longis 7-12 
mm latis 6-11 mm crassis ex basi ad apicem drupis 
sensim majoribus late cuneatis 5-6-angulosis in apice 
latissimo, apice obtuso videtur sed vere vadose retuso 
parte supera libera laevi lucido, pileo 2-3 mm 
alto, stylo 3 mm longo % bifido osseoso, stigmate 
1.5 mm longo lanceolate bifido brunneo papilloso, 
endocarpio centrali obpyramidali osseoso obscure 
brunneo apice concavo lateribus lateralibus 1-1.5 mm 
crassis intra lucido sublaevi sed in spiris striatis, 
semine 4 mm longo anguste obconico, mesocarpio 
apicali valde oblato suborbiculari cavernoso cum 
membranis latis brunneis paucis, mesocarpio basali 
fibroso et carnoso. 
diagnosis of holotype: Apparently a 
shrub; branches 12 mm in diameter at apex; 
leaves of unknown length, all cut off at 8-11.5 
cm from the base, 16 mm wide, thick, coriace- 
ous, deeply LJ-sulcate, 2 -pleated, blade appar- 
ently ligulate, at 8-11.5 cm from the base with 
20-21 parallel secondary veins in each half, the 
tertiary veins seen near the base, especially 
above, forming short oblong meshes, the base 
unarmed, pale, beginning at 3-4 cm up the 
margins with prickles 0.8-1. 5 mm long, 3-7 
mm apart, subulate-serrulate to arcuate stout 
subulate, compressed, ascending stramineous; 
the nearby midrib below unarmed; on the sub- 
ulate apex the margins and midrib below with 
prickles 0. 5-0.8 mm long, 1-2 mm apart, arcu- 
ate subulate, ascending, stramineous ; infruc- 
tescence a spike with 3 syncarps; peduncle 9.5 
cm long, 7 mm in diameter, 3-sided, slightly 
clavate; apical syncarp 6 cm long, 3.8 cm in 
diameter, cylindric, the ends obtuse, bearing 90 
drupes; the lateral syncarps 4-4.3 cm long, 3.5 
cm in diameter, ellipsoid, bearing 80 drupes; 
drupes 19-21 mm long, 7-12 mm wide, 6-11 
mm thick, progressively larger from base to 
apex of syncarp, broad cuneate, 5-6-angled, the 
apex the broadest part, appearing obtuse but 
actually shallow retuse, upper %-% the 
surface smooth, shining; pileus 2-3 mm high; 
style 3 mm long, bifid I/3 way, bony; stigma 
1.5 mm long, lanceolate, bifid, brown, papillose; 
endocarp central, obpyramidal, bony, dark 
brown, the apex concave, the lateral walls 1-1.5 
mm thick, within shining, smoothish, but some- 
what peripherally striate; seed 4 mm long, nar- 
rowly obconic; apical mesocarp strongly oblate 
suborbicular, a cavern with a few broad brown- 
ish membranes ; basal mesocarp fibrous and 
fleshy. 
expanded description: Stout shrub 6 m 
tall; branchlets 1.2-2. 2 cm in diameter, white, 
ringed by dark brown leaf scars; prop roots 
1.3 m long; leaves 98 (— f- 50-70 ?) cm long, 
28 mm wide near the middle, 16-24 mm wide 
near the base, near the middle with 20-26 par- 
allel secondary veins in each half and there the 
