330 Flora of the Malayan Peninsula. 
53. PIPER CURTIPETIOLUM, C. DC. in Records Bot. Surv. Ind. 22 
(1912). Branches glabrous, reddish-brown when dry, the spiciferous 
nearly 1 mm. thick; collenchyma in distinct and laterally widened 
bundles, not libriform; no peripheric lysigenous canals. Leaves 
shortly petioled, glabrous; limb membranous when dry, minutely 
pellucid-dotted, 85 cm. long, 26 mm. wide; elliptic-lanceolate, 
acutely acuminate, the base equilateral and acute ; 5-plinerved, the 
central nerve emitting 2 ascendent alternate nerves, the uppermost 
from about 17 mm. above the base, and having on each side of it 
one ascendent nerve free from the base ; petiole 5 mm. long, sheath 
basal. Peduncle glabrous, very slender, nearly5mm.long. Spike: 3 
about 17 mm. long and 1:5 mm. thick; rhachis hirsute ; bract glab- 
rous, its limb rounded, nearly 1 mm. in diam., subsessile at its centre; 
stamens 3, unequally long, anthers ovate, much shorter than the 
oblong filaments when these are fully developed. 
PERAK : Scortechint ; Gunong Inas, Wray A145. 
54. PIPER ERECTICAULE, C. DC. in Records Bot. Surv. Ind. 22 
(1912). Erect. Branches glabrous, the spiciferous about 1 mm. thick ; 
collenchyma libriform, continuous, rather thick ; a single central lysi- 
genous canal. Leaves shortly petioled, glabrous ; limb membranous, 
black-dotted underneath when dry, up to 15 cm. long and 4 cm. 
wide ; elliptic-oblong, acutely acuminate, the base nearly equilateral 
and acute very slightly wider on one side; 8-plinerved, the central! 
nerve emitting 5 ascendent nerves of which 2 on one side 3 on the 
other side, the uppermost from 3 cm. above the base, and having 
on each side of it one ascendent nerve much shorter than the others : 
petiole up to 5 mm. long, sheath basal. Peduncle glabrous, 7 mm. 
long. Spike: 3 13mm. long when flowering; rhachis hirsute ; bract 
glabrous, its limb rounded, 1 mm. in diam., shortly pedicellate near 
its centre ; stamens 3, anthers ovate. 
Kgpau# : woods on Kedah Peak, an erect pepper, June, Ridley. 
55. PIPER EUCALYPTOLIMBUM, C. DC. in Records Bot. Surv. 
Ind. 23 (1912). Scandent, 45—6 m. long. Branches glabrous, dark 
brown when dry, the spiciferous 9:5 mm. thick ; collenchyma in distinct 
bundles and partly libriform; a single central lysigenous canal. 
Leaves shortly petioled, glabrous; limb membranous when dry, 
minutely reddish-pellucid-dotted, about 14:5 cm. long, 4 cm. wide; 
elliptic-lanceolate, acutely acuminate, the base acute distinctly nar- 
