338 Flora of the Malayan Peninsula. 
acute or acuminate, 10°5—15 cm. long, 5°5—10°5 em. wide; 5—7- 
plinerved, the central nerve emitting 2 nerves and having on each 
side 1—2 nerves free from the base; petiole 6°3—12°6 mm. long. 
Peduncle much longer than the petiole, very stout; rhachis glabrous ; 
bracts forming a ring round the base of the smooth globose berry (ex 
Hook. f. l.c.). 
Matacca: Groffth. 
Sect. [1].—Heckeria, Hook f. Fl. Br. Ind. V. 195. 
(Sect. PotomoreHEe C. DC. in Prodr. XVI. i. 133). 
Spikes axillary or condensed at the top of an axillary branchlet. 
Bract hypopeltate. Flower bisexual. Stamens 2-3. Ovary free, 
stigmas 3. 
70. PIPER UMBELLATOM, Linn. Sp. Pl. 43, var. subpeltatum 
C. DC. in Donn.-Sm. Enum. V1. 339. Shrub 0°9—2 m. high. Stem 
and branches glabrous, the spiciferous minutely glandulose, about 
7mm. thick ; collenchyma not libriform, in distinct and laterally much 
widened bundles ; 2 rows of intramedullar bundles, a single lysigenous 
canal. Leaves very long petioled; limb membranous when dry, 
copiously reddish-pellucid-dotted, velutino-puberulous on both sur- 
faces; about 16—18 cm. long and up to 30 cm. wide, rounded-reniform, 
acutely and very shortly acuminate, the base equilateral, deeply 
cordate, 17-plinerved, the central nerve emitting 2 pairs of ascendent 
nerves, the uppermost from up to 26 mm. above the base, and having 
on each side of it 6 nerves diverging from the base; petiole velutino- 
puberulous on the back, 24—-30 cm. long, sheath prolonged up to the 
middle of the petiole. Spiciferous branch 3—4 cm. long, minutely 
puberulous, bearing 5—7 peduncles about 12 cm. long in the axils of 
oblong-acuminate and early deciduous scales. Spikes up to 8 cm. 
long and 3 mm. thick; rhachis glabrous; limb of bract triangular, 
ciliate at the margin, with a central glabrous pedicel; stamens 2 on 
the extreme base of the ovary; anthers deciduous, very small, nearly 
reniform, 4-valvate. Berry obovate, trigonous, about 0°75 mm. long, 
glabrous; stigmas 3, linear, sessile, very short. P.subpeltatum, Willd. 
Sp. Pl. I. 166; C. DC. in Prodr. l.c. 333; Hook f. Fl. Br. Ind. V. 95. 
Heckeria subpeltata, Kth. in Linn. XIII. 571. Potomorphe subpeltata, 
Mig. Syst. Pip., 213, Ilustr. 29, tab. 26, in Linn. XX. 129, Pl. 
Jungh, 1. 116, Fl. Ind. Bat. I. ii. 437 and Suppl. 186; in Linn. XXI. 
481; Wight Ic. t. 1925. 
