234 
PACIFIC SCIENCE, Vol XIV, July I960 
DISCUSSION: The new section Lateriobtutus 
will receive several other species, but it is here 
based on a single species. It is distinctive in its 
shorter single or single line of proximal carpels 
which are the focus of the stigmas of all the 
other carpels of each large, oblong phalange. 
In the related section Pandanus, the stigmas are 
centripetal, focusing on the one or more central 
carpels, and the phalanges tend to be sym- 
metrical. 
SECTION Australibrassia 
Pandanus conicus sp. nov. 
Fig. 6 
DIAGNOSIS HOLOTYPI: Arbor 10 m. alta laxe 
ramosa, trunco cum spinis adscendentibus ar- 
mato, radicibus inclinatis aereis 40-50 cm. longis 
gracilibus multis, foliis 300-325 cm. longis in 
base 4.5 cm. latis ligulatis subcoriaceis ad basem 
inermibus supra glaucis in sectio transverso late 
M-formato sed 10 cm. ex base cum aculeis 1-2 
mm. longis 5-10 mm. distantibus crassiter 
subulatis adscendentibus pallidis sed apicibus ru- 
bris midnervio inerme, in sectio mediale rnar- 
ginibus cum aculeis 0.6-1. 5 mm. longis 3-10 
mm. distantibus subulatis subadpressis pallidis 
cum apicibus rubris midnervio infra cum acu- 
leis paucis minutis remotis, apice gracile et in 
sectio 10 cm. ex apice solum 1.2 mm. lato rnar- 
ginibus cum serris 0.5 mm. longis 2-3 mm. dis- 
tantibus subulatis pallidis cum apicibus rubris 
midnervio cum dentibus simulantibus 0. 5-0.7 
mm. longis, syncarpiis solitariis pendentibus 24 
cm. longis 16 cm. diametro elliptico-ovoideis, 
phalangiis ca. 44 et 6-6.2 cm. longis 4-4.4 cm. 
latis 3. 4-3 =8 cm. crassis pyriformibus com- 
pressis 4-6-angulatis lateribus laevibus curvatis 
sublucidis suturis lateralibus nullis parte dimidia 
supera libera apice 1-2.5 cm. lato truncato, car- 
pellis 12-14, apicibus liberis 4-6 mm. longis 
anguste pyramidalibus acute angulosis eis cen- 
tralibus erectis eis exterioribus cum capite erecto 
vel paene divergente vel inflexo, sinibus apicalis 
centralibus 4-6 mm. profundis, stigmatibus 1-2 
mm. longis irregulariter ovalibus vel rhombicis 
obscure brunneis firmis lucidis apicalibus et 
plusminusve in lateribus ambis interioribus ex- 
Fig. 3. Pandanus biakensis, holotype, spread of spiny prop roots at base. The tree was climbed on steps cut 
in a spiny prop root, seen to the right of center. 
