EXOSTEMA. 



extremely bitter, and their juice produces a burning itching in the 

 nostrils and lips. Jacq. The bark is febrifugal and emetic. It has a 

 nauseous smell, and is excessively bitter and disagreeable. Dr. Wright 

 describes the flavour as at first sweet with a mixture of horseradish 

 and aromatics, afterwards excessively bitter. According to Guibourt 

 the little crystalline points with which it sparkles when broken are some 

 principle peculiar to this bark. 



858. E. floribundum R. and S. v. 19. DC.prodr. iv. 360. 

 Cinchona floribunda Swartz fl. ind. occ. 375. Lamb, cinch. 27. 

 t. 7. C. montana Badier journ. phys. 1789, febr. cxxix. t. 1. 

 C. Sanctae Luciae David, phil. trans. 74. C. Luciana Vittm. 

 summ. suppl. i. 264. West India islands, among woods, by 

 the side of torrents. 



Leaves elliptical, acuminate, 5-6 inches long, smooth like the 

 peduncles and flowers. Peduncles terminal, corymbose. Teeth of 

 the calyx short, acute. Corolla 3 times shorter than the leaves. 

 Capsule turbinate, smooth. Bark similar to the last, but rather 

 drastic. Pelletier and Caventou found in it neither quinine nor cincho- 

 nine. It is called both Quinquina Piton and Quinquina of St. Lucia. 



860. E. Souzanum Mart. Linncea lift. 1830, p. 45. DC.prodr. 

 iv. 361. Brazil. 



Leaves obovate or ovate, acute, smooth. Corymbs few-flowered, 

 terminal. Capsules scarcely an inch long, obovate, compressed. 

 Valves with about 4 nerves. Seeds transversely oblong, with a broad 

 wing all round. According to Guibourt this plant produces an ex- 

 cessively bitter febrifugal bark called Quinquina de Piauhi. It colours 

 the saliva yellow, and is said to contain cinchonine. Buchner found 

 in it an alkali which he called Esenbeckine, upon the erroneous sup- 

 tion that the bark belonged to Esenbeckia febrifuga. 



861. E. peruvianum Humb. and Bonpl.pl. ceq. i. 133. t. 38. 

 DC. prodr. iv. 360. Cinchona peruviana Poir. diet, suppl. 

 iv. 640. Colder parts of Peru on the side of the Andes between 

 the river Chota and the village of Querocotillo. 



Leaves ovate-oblong, acute, rounded at base, the upper sessile and 

 cordate. Corymbs terminal, sessile. Peduncles and calyx downy. 

 Corolla silky outside, its lobes scarcely shorter than the tube. Fila- 

 ments smooth, united to the tube at the orifice. Stigma obsoletely 

 2-lobed. Calyx-teeth acute. This has a very bitter bark, a little 

 sweet, with a nauseous smell, according to Guibourt. 



MANETTIA. 



Limb of calyx 4-5-lobed, often with secondary lobes inter- 

 posed between the principal ones. Corolla funnel-shaped, 

 with a terete or quadrangular tube, a hairy throat, and a 4-5- 

 lobed limb. Anthers sessile in the throat of the corolla. Cap- 

 sule ovate, compressed, crowned with the lobes of the calyx. 

 Seeds peltate, girded by a usually toothed border. Herbaceous 

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