310 Flora of the Malayan Peninsula. 
chint 285; Larut at 2800-3000 ft. altitude, August, Kzng’s Collector, 
3230; on limestone hills at Goping 300—500 ft. altitude, 5906. 
19. PipzR Loneum, Linn. Sp. Pl. 29 (1753) (exclus. Syn. Rumph.). 
Creeping below, flowering shoots erect. Branches glabrous, pale 
brown when dry, the spiciferous 1 mm. thick; collenchyma in distinct 
bundles, libriform in its inner zones; a single central lysigenous 
canal. Leaves shortly petioled; limb membranous when dry, 
copiously pellucid-dotted, about 6—10 cm. long and 2°5—3:5 cm. 
wide, glabrous above, minutely pubescent on the nerves underneath ; 
oblong-ovate, acutely acuminate, the base cordate equilateral or 
slightly wider on one side than on the other; 5—7-nerved, the 3 
central nerves stouter than the others; petiole minutely pubescent, 
about 6 mm. long in the upper Jeaves, sheath basal. Peduncle 
minutely pubescent, 21—24 mm. long in the male, 12°6—14°6 mm. in 
the female. Spike: 3 up to 5°5 cm. long and 3 mm. thick; rhachis 
glabrous; bract glabrous, its limb rounded 1:5 mm. in diam., with 
a rather long central pedicel; stamens 2, anthers elliptic, filaments 
short: @ about 15 mm. long and up to 45 mm. thick when 
flowering ; rhachis and bract as in the male ; ovary partly imbedded 
in the rhachis, its upper portion free and glabrous; stigmas 3, 
ovate-acute. Berry partly imbedded in the rhachis, its upper free 
portion glabrous and globose, 2 mm. in diam., blackish when dry. 
P. longum Pistolochiae Pluk. Almag. 297, Phyt. t. 104, fig. 4, 
Herb. Pluk. 97, fol. 105; ‘ Cattu tirpali,’ Rheede, Hort. Mal. VII. 27, 
t. 14. P. folits cordatis petiolatis sessilibusque, Linn. Fl. Zeyl. 30. 
P. longum, Herb. Burm. 4, fig. 3; Hill Dict. 26, 17. t. 17 fig. 1; Vahl! 
Enum. I. 334; Willd. Sp. Pl. 1. 161; Herb. Willd. n. 698, fol. 1; 
Roxb. Fl. Ind. I. 156; Lour., Fl. Cochinch. 40; C. DC. in Prodr. 
XVI. i. 355 ; Hook. f. Fl. Brit. Ind. V.83. Chavica Roxburghii, Miq. 
Syst. Pip. 239; [Il. Pip. 35, t. 30; in Hook. Lond. Journ. IV. 433; in 
Linn. XX. 130; in Fl. Ind. Bat. I. ii. 430; Hayne Arnz. Gewachs. 
XIV. t. 20. 
PENANG: Curtis 837; near the bank of Kuila river, King’s 
Collector 385. SELaANcor: Langat, Ridley 399. Panane: Pekan, 
Ridley 1004.—Distr1B.—India, Malay Archipelago. 
20. PIPER SUBFRAGILE, C. DC. in Records Bot. Surv. Ind. VI, 9 
(1912). Scandent. Branches glabrous, light brown when dry, the 
spiciferous 0°56 mm. thick; collenchyma in distinct bundles, libri- 
form; a central and several lysigenous canals. Leaves shortly 
