34 
PACIFIC SCIENCE, Vol. XVII, January 1963 
John, which has the syncarp 11-14 cm in diam- 
eter, oval-subglobose; phalanges 4.3 -4.6 cm 
long, orange; central apical sinuses 3.5-5 mm 
deep; endocarp lateral walls 2-3 mm thick; and 
the leaves 4.8-6 cm wide, at midsection the 
margins with prickles 3-4 mm long, and 5-17 
mm apart. P. rubricoloratus has the syncarp 8.5 
cm in diameter, globose; phalanges 3.6 cm 
long, red; central apical sinuses 0.5-2 mm deep; 
endocarp lateral walls 1.5 mm thick; and the 
leaves 2.8-3 cm wide, at midsection the mar- 
gins with prickles 2—2.5 mm long, and 4—12 
mm apart. 
The epithet is formed from the Latin words 
ruber, red; coloratus, colored, in reference to 
the red color of the fruit. 
Pandanus brevicornutus sp. nov. (sect. Rykia) 
Fig. 164 
DIAGNOSIS HOLOTYPI: Frutex, ramis assur- 
gentibus in apice 17 mm diametro luteis lucidis, 
foliis 41-47 cm longis 27-29 mm latis in medio 
sed in basi 18-22 mm latis ligulatis chartaceis 
proxima basem supra midnervum sulcatis alibi 
planis in sectione mediali cum 19-21 nervis 
parallelis secundariis in quoque medio nervis 
tertialis transversis semievidentis proxima api- 
cem in apice 3.5 cm longo 1.5 mm lato trigono 
subulato semiabrupte diminuentibus, basi am- 
plexicauli inermi sed ex 3-4 cm marginibus 
cum aculeis 1.5—3 mm longis 3—7 mm separatis 
subulatis adscendentibus obscure mahogani- 
coloratis lucidis, midnervo infra ex 9-10 cm 
cum aculeo unico 2.5 mm longo arcuato subu- 
lato reflexo, in sectione mediali marginibus cum 
aculeis 0.5-1. 5 mm longis 6-11 mm separatis 
graciliter subulatis proxime adpressi-adscenden- 
tibus, midnervo infra cum aculeis 2-2.5 mm 
longis paucis remotis arcuatis subulatis reflexis 
vel adscendentibus, in apice subulato marginibus 
cum serrulis 0.2— 0.5 mm longis 0.5— 1.5 mm 
separatis, midnervo infra cum serrulis simulan- 
tibus 2-3 mm separatis, infructescentia cum 
syncarpio unico terminal! erecto, pedunculo 10 
cm longo 6 mm diametro cum folioso-bracteis 
multis, syncarpio 5.2 cm longo 4 cm diametro 
late ellipsoideo cum circa 960 drupis eis 16— 
18.5 mm longis 2-2.5 mm latis 1.5-2 mm 
crassis anguste cylindricis compressis 5-angu- 
losis corpore 14-15 mm longo, pileo 5-6 mm 
longo basi 2 mm alta semiorbiculari, stylo 3-4 
mm longo lanceolato osseoso brunneo lucido 
proxime curvato integro vel aliquis bifidis, stig- 
mate 1-1.5 mm longo elliptico vel late elliptico 
sulcato brunneo papilloso paene ad apicem ex- 
tento, endocarpio in parte 14 infera cartilagineo 
brunneo lateribus 0.1 mm crassis intra pallidis 
exlucidis, semine 3-4 mm longo ellipsoideo 
truncato, mesocarpio apicali cavernoso angusto 
ellipsoideo 9 mm longo, mesocarpio basali in 
lateribus fibroso intra carnoso 4-5 mm longo. 
DESCRIPTION OF ALL SPECIMENS EXAMINED: 
Shrub; branches assurgent, up to 1.3 m long, 
sprawling and forming a thicket, 17 mm in 
diameter at apex, yellowish, shining; leaves 35- 
50 cm long, 24-29 mm wide at the middle, 18- 
22 mm wide near the base, ligulate, chartaceous, 
yellowish green, not glaucous beneath, near the 
base sulcate over the midrib, elsewhere flat, at 
midsection with 18-21 secondary parallel nerves 
in each half, the tertiary cross veins barely visi- 
ble only near the tip, near the tip rather ab- 
ruptly tapering into a 3-5-7 cm subulate trigon- 
ous apex 1.5 mm wide, the base amplexicaul 
and cream-colored, unarmed, but beginning at 
3-4 cm the margins with prickles 1.5-3 mm 
long, 3-7 mm apart, subulate, ascending, dark 
mahogany colored, shining; the midrib below 
9-10 cm up with a prickle 2.5 mm long, arcu- 
ate subulate, reflexed; at midsection the mar- 
gins with prickles 0.5-1. 5 mm long, 6-11 mm 
apart, slender subulate, closely appressed ascend- 
ing; the midrib below with a few remote 
prickles 2-2.5 mm long, arcuate subulate, re- 
flexed or ascending; on the subulate apex the 
margins with serrulations 0.2-0. 5 mm long, 
0.5-1. 5 mm apart; the midrib below with simi- 
lar ones 2-3 mm apart; pistillate infructescence 
with a single, terminal, erect syncarp (rarely a 
smaller, lateral, secondary one, globose and 2 
cm in diameter); peduncle 10-15 cm long, 4-6 
mm in diameter, with numerous leafy bracts; 
syncarp 3. 5-5. 2 cm long, 3-4 cm in diameter, 
when young cream colored, broadly ellipsoid, 
bearing 600-960 drupes, these 16-18.5 mm 
long, 2-2.5 mm wide, 1.5-2 mm thick, nar- 
rowly cylindric, compressed, 5 -angled, upper 14 
free, the body 14-15 mm long; pileus 5-6 mm 
long, the base 2 mm high, semiorbicular, 
crowned by a style 3-4 mm long, prolonged 
