38 
the free part of the filaments, and this free part again longer than 
the adherent one. On the other hand, I oberved that in the Cas- 
carilla fina de Uritusinga, or the C. Condaminea, the anthers 
are twice the length of the free portion of the filaments, and the 
free parts are two-thirds shorter than the adherent one. There is 
scarcely any mention of these proportions in the otherwise ex- 
cellent descriptions of Cinchone for which we are indebted to 
Vahl, Swartz, and the authors of the Flora Peruviana. In the 
mercantile world, several barks are called Peruvian bark which 
do not belong to the genus‘Cinchona. Thus, the excellent remedy 
which the Catalan Capuchin friars of the missions on the River 
Carony first made known, was called in Spain Quina de la Guay- — 
ana, or de la Angostura. M. Mutis became acquainted with this 
bark in 1759 in Madrid, at the house of Don. Vincente Rodriguez 
de Rivas :* he employed it in his medical practice, and even then 
supposed that it didnot belong to the genus Cinchona. Leefling 
died in the missions of Carony without knowing this valuable 
substance. It was afterwards ascribed, sometimes to the Brucea 
ferruginea, which however grows in Abyssinia; sometimes to the 
Magnolia glauca; sometimes (which certainly was more probable) 
to the Magnolia Plumieri. In our expedition we had an oppor- 
tunity of examining botanically the Cuspare tree, which yields 
the cortex Angosture. We discovered it to be a new genus, on 
which our excellent friend Willdenow, in the Transactions of the 
Royal Academy of Berlin, has conferred the name of Bonplandia.+ 
This name of my travelling companion has been retained for the 
Cuspare plant, since we have changed the Mexican Bonplandia 
er: described by Cavanilles, to Caldasia heterophylla. 
a = of Cumana, which for the last opr < or five pours 5 has 
os Pupel celica de Santa Fe, No. 95. P 337. 
~ Samml. Deutscher Abhandl, far 1801 und 1809, S, 36, 
