Guiana Bark, FRENCH, the bark of Portulana hexandra, also called Couteria speciosa, a tree of the natural order Cinchonaceæ, with opposite ovate leaves, and corymbs of very large purple flowers, a native of Guiana. The bark is esteemed a very powerful febrifuge, and the value of Warburg's Fever Drops is believed to depend mainly upon it.
Guiana Bark
Chambers's Encyclopaedia, Volume 5: Friday to Humanitarians, p. 451
Source scan(s): p. 0466