APOCYNACEJE. 



HASSELTIA. 



Calyx 5-parted, permanent. Corolla with the tube contracted 

 in the middle ; the throat naked ; the limb campanulate, 5-parted, 

 contorted. Stamens inserted in the throat ; anthers large, cus- 

 pidate, callous at the back, adhering to the stigma. Ovary 

 double, surrounded by a fleshy ring ; styles 2 ; stigma clavate. 

 Follicles 2, distinct, long. Seeds with a stipitate coma at the 

 lower end. Blume. 



11 34-. H. arborea Blume By dr. 1046. Java, near Tjam- 

 piam, in the province of Buitenzorg. 



A handsome tree. Leaves oval, rather acute at each end, smooth 

 above, paler and a little downy on the under side. Flowers large, 

 yellowish white, in axillary fascicles. Blume. In Java the milk, 

 obtained from the trunk by incision, mixed with honey, and reduced 

 with boiling water, is employed as a powerful drastic, for destroying 

 the tape worm ; it is however apt to produce inflammation of the intes- 

 tines, and is even in some cases fatal. 



VAHEA. 



Calyx very small, with 5 segments. Corolla funnel-shaped, 

 with a long tube, ventricose at the base ; limb 5-cleft, with 

 contorted segments. Style subulate ; stigma bicuspidate in an 

 orbicular fleshy disk. 



1135. V. gummifera Poir. enc. metk. suppl. v. 409. Mada- 



Branches smooth, round. Leaves moderately stalked, coriaceous, 

 ovate-elliptical, obtuse, shining, about 2 inches long. Flowers smooth, 

 pale yellow, in terminal cymes. Segments of calyx acute. Tube of 

 corolla about an inch long, with linear rather blunt segments. Yields 

 Caoutchouc in Madagascar. 



URCEOLA. 



Calyx 5-toothed. Corolla urceolate, ovate, 5- toothed. An- 

 thers 5, sagittate, with a villous connective ; filaments inserted 

 into the base of the corolla. Disk campanulate, surrounding 

 the ovary. Ovary double ; stigma ovate, banded round the 

 middle. Follicles 2, round, leathery, wrinkled, compressed, 

 2-valved. Seeds reniform, immersed in fleshy pulp. 



1136. U. elastica Roxb. in As. res, \. 169. Sumatra and 

 Pulo Pinang. 



A large woody climber, running over trees to a great extent. Young 

 shoots a little hairy. Leaves short-stalked, ovate-oblong, pointed, a 

 little scabrous, with a few scattered white hairs on the under side. 

 Panicles terminal, brachiate, much branched. Flowers minute, dull 

 green, hairy. This plant yields a very fine kind of Caoutchouc, firm, 



536 



