XCI. AP0CYNACEA3. 
325 
Willughbeia.] 
the finger and the thumb coagulates in a firm lump, leaving no viscidity. 
That of IV, coriacea and all other of our Willughbeias leaves an unpleasant 
stickiness on rubbing. 
(6) W. dulcis Ridl. Trans, Linn. Soc. iii. 319. W. martabanica 
King and Gamble , l.c. 395, not of Wallich. 
Slender liane. Leaves deep green, thinly coriaceous, obovate or 
oblanceolate, quite obtuse or rarely acuminate, base acute; nerves 
28 to 30 pairs; 3 in. long, 1 in. wide; petioles -25 in. long. Cymes 
glabrous. Flowers yellow, -5 in. long. Calyx-lobes ovate, blunt 
ciliate. Corolla-tube dilate at top, lobes much longer, no scales 
in throat. Berry elliptic, apricot colour, 3 in. long, 1*25 in. through. 
Hab. Local ; climbing over bushes on the heaths. Pahang, Pekan ; 
Ulu Rumpin (Foxworthy). Malacca (Griffith). Use : Fruit sweet 
and eatable. 
(7) W. tenuiflora Dyer, l.c. iii. 625; King, l.c. 396. 
Big liane. Leaves thinly coriaceous, elliptic to oblanceolate 
acute, shortly acuminate, base cuneate; nerves 20 to 30 pairs; 
4 to 5 in. long, 1-25 to 2 in. wide; petioles slender, -5 to -6 in. long. 
Cymes 1 in. or more long, pubescent. Calyx campanulate, lobes 
ovate pubescent. Corolla narrow cylindric, dilate above base, 
villous inside, *4 in. long, lobes -4 to 7 in. long, oblong falcate, 
blunt, white. Fruit pear-shaped, very large, 6 in. long, 4 in. 
through, apiculate, light green, pulp creamy white. Seed red 
outside, pink inside. Hab. Common in the south, in forests. 
Singapore, Bukit Timah ; Reservoir Woods. Malacca, Ayer Panas 
(Curtis). Negri Sembilan, Tampin (Burkill). Selangor, Sungei 
Buloh (Foxworthy). Dindings, Lumut. Distrib. Sumatra. Native 
names: Akarjitan; Akar Relang putih; Akar Segerang; Getah 
Puchong Kapor. Use : Latex mixed with that of W. firma. 
(8) W. flavescens Dyer, l.c. iii. 625; King, l.c. 397. 
Stem about 2 to 4 in. through or less, black. Leaves coriaceous 
elliptic, shortly blunt acuminate, base round or shortly cuneate; 
nerves slender, 16 to 20 pairs with many secondary ones, midrib 
prominent beneath, 2-5 to 4-5 in. long, 1*25 to 2-25 in. wide. Cym<^ 
axillary dichotomous with slender branches, 1 in. long. Calyx 
very small, lobes ovate acute. Corolla-tube -15 in. long, urn¬ 
shaped, lobes broad, rounded, as long, pale yellow. Fruit globose, 
yellow, 1 to 2 in. through. Seeds few. Hab. Dense forests, 
Singapore, Garden Jungle ; Pulau Ubin; Mandai. Malacca, Bukit 
Sadanen (Derry). Perak (no locality) (Kunstler). Distrib. 
Sumatra. Native names : Akar Tengkang merah and putih; 
Akar Sagran. Use : The rubber is inferior and rather slimy, but 
was reported on in 1880 as fair and would be useful, valued in 
1879 at Is - 3 ^- P er P oun d. 
var. rufescens, W. rufescens Dyer, l.c. iii. 626. 
Leaves narrower; nerves more numerous. Singapore, Malacca 
(Maingay). Negri Sembilan, Tampin (Burkill). Province Welles- 
