Page 311: Revision of Pandanus , 1 6. Thailand, Vietnam -St, John 
473 
section Micro stigma 
Pandanus catch sp. nov. (sect. Micro stigma) 
Fig. 195 
nom. verm.: "lang kai.” 
DIAGNOSIS HO'LOTYPI : Truncus 3 m alms ra- 
mosus eo ramisqne cum "spinis brevibus arma- 
tis,” foliis 75 cm longis 2-2.5 cm latis tenuibus 
sed subcoriaceis infra subpallidioribus supra sub 
catis marginibus subrevolutis in sectione rnediali 
cum 32 nervis secumdariis in quoque latere ligu- 
latis sed sensim in apice subulate longe diminu- 
entibus eo 10 cm ex apice 4 mm lato basi 
exarmatis sed ex 4 cm marginibus cum serris 
fortibus arcuatis subulatis 1-2 mm longis 5-15 
mm distantibus toto obscure brunneis, midnervo 
infra inermi, in sectione medialis marginibus 
cum dentibus 0.2-0. 5 mm longis 6-8 mm dis- 
tantibus subulatis toto adpressis adscendentibus 
brunneis, midnervo infra cum dentibus simu- 
lantibus 3-8 mm distantibus, circa apicem mar- 
ginibus cum serris 0.2-0.3 mm longis 4-9 mm 
distantibus brunneis, midnervo infra cum ser- 
rulis simulantibus 13-15 mm distantibus, 
pedunculo 7 cm longo 7 mm diametro trigono 
folioso, syncarpio subgloboso 6 cm diametro ter- 
minali solitario erecto cum 26 drupis eis 3. 2-3. 4 
cm longis 1.7-2 cm latis 1.7- 1.8 cm crassis (sed 
in gemino 2.6 cm latis) ellipsoideis in sicco 
brunneis obovoideis sed basi cuneata lateribus 
laevibus sublucidis 5-anguiatis angulis subrotun- 
datis parte Vz supera libera, apice rotundato sed 
biangulatis, stigmate 3 mm longo excentrico 
obdeltoideo cordato sulcato obscure brunneo pa- 
pillose valde oblique et proximo, endocarpio 
supramediali osseoso obscure brunneo 12-13 
mm longo lateribus 2 mm crassis, semine 6 mm 
longo adamantine sed trilobate, mesocarpio 
apical i plerumque medulloso sicco, mesocarpio 
basali fibroso et medulloso. 
DESCRIPTION OF ALL SPECIMENS EXAMINED: 
Trunk 3-5 m tall, branching, it and the branches 
"armed with short spines”; leaves 75-84 cm 
long, 2-2.7 cm wide, rather thin but subcoria- 
ceous, slightly paler beneath, above with a cen- 
tral furrow and the margins gently down-rolled, 
at midsection with 32 secondary veins in each 
half, ligulate but gradually long tapering to the 
subulate apex which 10 cm down is 2-4 mm 
wide, the base unarmed for 4 cm then the mar- 
gins with heavy arcuate subulate serrations 1-2 
mm long, 5-15 mm apart, wholly dark brown, 
the nearby midrib below unarmed; at the mid- 
section the margins with the' teeth 0.2-0. 5 mm 
long, 6-8 mm apart, subulate, fully appressed 
ascending, brown; the midrib below with simi- 
lar teeth 3-8 mm apart; near the tip the margins 
with brown serrations 0.2-0.3 mm long, 4-9 
mm apart, the midrib below with similar ser- 
rations 13-15 mm apart; peduncle 7 cm long, 
7 mm in diameter, 3 -angled, leafy bracted; lower 
bracts 25-33 cm long, 15 mm wide, distended 
and paler at base; syncarp subglobose 6-7 cm 
in diameter, terminal, solitary, erect, bearing 
20-26 drupes, these 3.2-3 .8 cm long, 1. 7-2.1 cm 
wide, 1.7—1. 8 cm thick, (but in a twinned one 
2.6 cm wide) , ellipsoid, when dried brown, obo- 
void but the base cuneate, the sides smooth, 
somewhat shiny, 5-6-angled, the angles more 
rounded than sharp, upper Vz free, the apex 
rounded, but two lateral angles produced into 
the sharp ridges curving and leading to the ex- 
centric stigma; stigma 2. 5-3. 5 mm long, obdel- 
toid cordate or oblong cordate or lance-cordate, 
creased, dark brown, papillose, sharply oblique 
and proximal; endocarp supramedian, bony, dark 
brown, with two vertical columns near the cen- 
ter, 12-13 mm long, a narrow transverse median 
plate connecting to the marginal vertical flanges 
2 mm thick; seed 6 mm long, diamond-shaped 
but with 3 ascending lobes; apical mesocarp - 
mostly of dry, membranous pith; basal mesocarp 
fibrous and pithy. 
HOLOTYPUS: Thailand (Siam): Kao Tala, 
Ranawng, on limestone rocks, 200 m. alt., Feb. 
3, 1927, A. F. G. Kerr 11,796 (bk). 
SPECIMENS EXAMINED: Thailand, Kaw 
Wieng, Chumpawn, limestone rocks, 50 m. alt., 
Jan. 11, 1927, A. F. G, Kerr 11,373 , nom. vern. 
"chan deng,” (BK); Ban Kawp Kep, Surat, form- 
ing pure growth on top of limestone hill, 100 
200 m. alt., Aug. 16, 1927, Kerr 13,338 (bk); 
Sapli, Chumpawn, Sept. 8, 1927, Put, A. F. G. 
Kerr 1,018 (bk) ; Kantuli, Surat, Sept. 10, 1931, 
Put, A. F. G. Kerr 4,189 (bk). 
DISCUSSION: P. edicts is a member of the 
section Microstigma, as is its nearest relative, 
P. utilissimus Elmer, of the Philippines, a species 
which has the syncarp 60 cm long, 20 cm in 
diameter; drupes 4.5-7 cm long, linear-oblan- 
ceoloid, the sides semiviscid, the upper VS free; 
