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neo papilloso sed aliquis inferis cum areola concava 
distali et cum stigmate oblati-elliptico obliquo proxi- 
mali, endocarpio submediali ellipsoideo apiculato 
osseoso palliditer brunneo lateribus lateralibus 0.2 mm 
crassis intra laevibus exlucidis, mesocarpio apicali 
fibroso et medulloso, mesocarpio basali fibroso et 
carnoso. 
DIAGNOSIS of holotype: Probably a tree; 
habit not recorded; roots, trunk, and branches 
not collected ; leaves probably two or more 
meters in length, but only a leaf tip 51 cm long 
preserved, this thin coriaceous, green above, 
paler green below, V-sulcate, 2 -pleated, at the 
point 51 cm down 8 cm wide and with 6 3 
parallel secondary veins in each half, no tertiary 
veins, and at the same point the margins with 
prickles 0.4-1. 3 mm long, 1-3 mm apart, 
straight subulate, appressed ascending, pale; the 
nearby midrib below with prickles 0.4-0. 8 mm 
long, 2-4 mm apart, arcuate stout subulate, 
brown tipped ; on the acute apex the margins 
with arcuate subulate-serrulations 0.3-0. 7 mm 
long, 0.5-2 mm apart, ascending, pale; the mid- 
rib below with prickles 0.6-0. 8 mm long, 3-5 
mm apart, arcuate stout subulate, ascending, 
pale; infructescence with a solitary syncarp; 
peduncle 2.5 cm in diameter, 3-sided, bracteate; 
syncarp completely enwrapped by 12-15 na- 
vicular bracts in 3 series and of all of these the 
lower part preserved, this 22-23 cm long, 9 cm 
wide, thick coriaceous, the margins with prickles 
0.3-0. 5 mm long, 1-2 mm apart, subulate, sa- 
lient; the midrib below unarmed for some 15 
cm; there are also two bract tips 45-50 cm long, 
but these are so different in thickness and struc- 
ture that they appear like foliage bracts early in 
the developing spiral of leaves; syncarp 22-27 
cm long 4.5-5 cm in diameter, subcylindric, 
dull orange-red, bearing multitudinous drupes, 
these 13-14.5 mm long, 2. 5-2.8 mm wide, 
2-2.5 mm thick, narrowly prismatic, 5-7-angled, 
upper y 5 free ; pileus 3 mm high, pyramidal ; 
stigma apical and horizontal on most drupes, 
1-1.2 mm wide, cordate or reniform, brown, 
papillose, but some of the lower drupes with an 
apical concave platform and the stigma oblate 
elliptic on the proximal oblique face; endocarp 
submedian, ellipsoid, apiculate, bony, light 
brown, the lateral walls 0.2 mm thick, within 
smooth, dull; apical mesocarp of fibers and 
pith; basal mesocarp fibrous and fleshy. 
holotypus: Papua, Isuarava, secfondary] 
forest, 3,500 ft alt, 3. 3. ’36, C. E. Carr 15,922 
(bm). Isotypes (k, l) ! 
discussion: P. erythros is a member of the 
section Microstigma, as is its closest relative, 
P. Hollrungii Warb. of Australian New Guinea, 
a species with the syncarp 35 cm long, 4-7 cm 
in diameter; drupes 11-13 mm long, the apex 
wide pyramidal; apex of the endocarp low con- 
vex; leaves at midsection with prickles of the 
margins 0.3-1 mm long, 1.5—3 mm apart, 
arcuate stout subulate, ascending. P. erythros has 
the syncarp 22-27 cm long, 4.5-5 cm in diam- 
eter; drupes 13-14.5 mm long, the apex nar- 
rowly pyramidal; apex of the endocarp conic; 
leaves at midsection with prickles of the margins 
0.4-1. 3 mm long, 1-3 mm apart, straight subu- 
late, appressed ascending. 
The new epithet is the Greek adjective 
eruthros, red, and is given with reference to the 
orange-red fruit. 
Pandanus plicatus sp. nov. (sect. Micro stigma') 
Fig. 274 
nom. vern.: "gani.” 
diagnosis holotypi: Forma radices truncus et 
ramuli incogniti, basibus et mediis foliarum non con- 
servatis, apicibus foliarum 39 cm longis preservatis 
4.5 cm latis subtiliter coriaceis supra viridibus infra 
palliditer viridibus cum 48 nervis parallelis secundariis 
in quoque dimidio nervis tertiis reticulis anguste 
oblongis formantibus, lamina ligulata V-sulcata 2- 
plicata in apice acuto diminuenti in sectione inferiori 
visi marginibus cum aculeis 2-4 mm separatis arcuatis 
crassiter subulatis adscendentibus biformatis alter- 
nantibus eis majoribus 0.7-1. 3 mm longis illis minori- 
bus 0.2-0. 4 mm longis, midnervo infra angusto elevato 
et cum aculeis simulantibus biformatis 1.5-3 mm 
separatis eis majoribus 0.2-0. 4 mm longis illis minori- 
bus 0.1-0. 2 mm longis, in apice marginibus et mid- 
nervo infra cum subulati-serrulis 0.1-0. 5 mm longis 
0.5-1. 5 mm separatis pallidis, infructescentia cum 
syncarpio solitario, pedunculo 17 cm longo, 12-15 mm 
diametro trigono foliosi-bracteato, syncarpio in serie- 
bus tribus foliarum inclusis, bracteis exterioribus cum 
basi distenta lanceolata 9-10 cm lata syncarpio 
aequanti firme chartacea pallide lutea marginibus et 
midnervo infra minute spinosa apice folioso viridi 
ligulato, bracteis interioribus 23 cm longis lineari- 
lanceolatis, syncarpio 20 cm longo 6.3 cm diametro 
cylindrico cum drupis multis eis 20-22 mm longis 
2.5-4 mm latis 2.5-3 mm crassis anguste prismaticis 
5-6-angulosis rubris et licet omnino glutinosis parte 
34 supera libera ovoidea laevi lucida sed in sicco 
rugosa, stigmate 1.5-2 mm diametro apicali hori- 
zontal! subcirculari obscure brunneo papilloso, endo- 
carpio in parte % infera osseoso rubri-brunneo tubu- 
