312 Flora of the Malayan Peninsula. 
very minutely pellucid-dotted, 10—13 cm. long, 45—90 mm. wide ; 
ovate or rounded-ovate, acutely acuminate, the base equilateral, 
rounded or more or less cordate in the inferior leaves, 5-pli—9-pli- 
nerved, the central nerve emitting on each side 1—2 ascendent 
nerves, the uppermost from about 20 mm. above the base, and 
having on each side 1—2 nerves free from the base, the external 
less ascendent and much thinner than the others ; petiole 15—35 mm. 
long with a sheath prolonged up to +— of its length. Pedunele 
glabrous, as long as the petiole in the male and longer than 
it inthe female. Spike: # nearly as long as the limb ; rhachis tomen- 
tose; bract glabrous, its limb rounded or obovate, sessile at its 
centre ; anthers elliptic, 4-valvate; filaments short, of same width as 
the anthers: 2 about 5 cm. long and 10 mm. thick when ripe; 
rhachis tomentose; bract as in the male; base of the ovary 
imbedded in the rhachis, stigmas 4—5, lanceolate ; Berry convex and 
tomentose in the upper part. 
Vahl Enum. I. 328; Willd. Sp. Pl. I. 159; Rosy Fl. Ind. Ed. 
Car. & Wall. I. 160; C. DO. in. Prodr. XVI. i. 359; Hook. f. FI. 
Br. Ind. V. 85 (excluding Ic. Wight and Syn. Ch. Chuvya, Miq.) ; 
Bot. Mag. t. 3132 (excluding fruit analysis). Chavica Beile, Miq. 
Syst. Pip. 186. Ch. auriculata, Miq. Syst. 269. Aetanthe hexagyna, 
Miq. Syst. Pip. 412. 
Cultivated in the hotter and damper parts of India, Ceylon, the 
Malay Peninsula, Andamans and Nicobar Islands, Oceania. 
Forma 6, C. DC. in Philipp. Journ. Se. V. 431. P. Betle var. y 
densum in C. DC. Prodr. l.c. 360 ; limb more ovate and less equilateral 
at the base. 
PenanG: Balik Pulau, Ridley 8029. Prax: Waterloo, at 1500 
ft. altitude, Curtis 2701. SrLancor: Kwala Lumpur, Curtis 2368, 
2369. Srncapore: Vern. “Sirih Batek,’’ Ridley 4684.—DistRIz. : 
ANDAMANS: King’s Coll. 322. Nicopars: Kurz. 
23. PIPER FEBRIFUGUM, C. DC. in Records Bot. Surv. Ind. VI. 10 
(1912). Scandent. Branches densely fulvescent-villose, the spicifer- 
ous 4 mm. thick; collenchyma continuous and libriform ; no peri- 
pheric lysigenous canal, or zone of globose sclerous cells between the 
collenchyma and the peripheric fibrovascular bundles. Leaves short- 
ly petioled ; limb firmo-membranaceous when dry, nearly 22°5 cm. 
long and 13 cm. wide; glabrous above, shortly and rather densely 
hirsute underneath ; ovate, acutely acuminate, the base cordate with 
round unequally long and wide lobes inserted at the same level on the 
